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PROFESSOR E.C. AIFANTIS (Tel./Fax: +30-2310-995921, email: mom@mom.gen.auth.gr ) Personal Data Date/Place of Birth: 10 October 1950/Anthili, Greece; Citizenship: Hellenic/US; Private address: 2 Olympiados Str., N. Krini, GR-55132, Thessaloniki, Greece. Tel.: +30-2310-444386, and 1010 College Avenue, MI-49931, Houghton, USA. Tel.: +1-906-482-3483 Education Nat. Tech. Univ. Athens, Mining & Metallurgy (Diploma 1973); Univ. of Minnesota, Materials & Mechanics (Ph.D 1975). Teaching University of Minnesota (Instructor: 1975-76); University of Illinois (Assistant Professor: 1976-80); University of Minnesota (Visiting Professor: 1980-82); Michigan Technological University, Houghton, USA (Professor 1982; currently Distinguished Research Professor); Aristotle University, Thessaloniki, GREECE (Professor 1989, after Special Honorary Invitation/Metaklisi). Undergaduate/Graduate Courses in Continuum Mechanics and Materials Science, Micromechanics and Nanomechanics. Research/Publications/Funding Diffusion and Environmental / Stress Corrosion Cracking, Flow through Porous Media and Soil / Rock Mechanics, Phase Transitions and Interfaces, Micro/Nanomechanics of Elasticity, Plasticity and Fracture, Material Instabilities - Dislocation Patterning / Shear Banding / Damage Localization, Gradient Elasticity / Plasticity and Size Effects, Novel and Nanostructured Materials. Published over 450 papers on these subjects as articles in scientific journals and chapters in books. Citations: 4737 (ISI Web of Science), 3160 (Scopus). Continuous funding from the US National Science Foundation (NSF) since 1976. Also funding from the US Air Force Office of Scientific Research (AFOSR), US Army Research Office (ARO), US National Academy of Sciences, US National Research Council (NRC), Naval Research Laboratory (NRL), Sandia National Labs (SNL), NATO. Finally, substantial funding from the Commission of European Communities of EU (HCM/TMR/RTN Networks). The total research funding as Principal Investigator has been over 10 million dollars. Seminars Invited in over 450 occasions to speak in conferences, universities, and research laboratories in USA, Europe, FSU, Australia, Japan, China, South America and South Africa. Served as reviewer for approximately two dozen journals and funding agencies. Organized over a dozen Workshops/Symposia/Conferences and served as a Member of Organizing Committees for over two dozen International Conferences. Editor: Journal of the Mechanical Behavior of Materials; Honorary Editor: Computer and Experimental Simulations in Engineering and Science; Advisory/Editorial Boards: Numerical and Analytical Methods in Geomechanics, Open Mechanics Journal, Journal of Nano Research, Acta Mechanica Solida Sinica, Materials Physics and Mechanics, Acta Mechanica (formerly), Mechanics of Cohesive-Frictional Materials (formerly). Joint ASME/ASCE/SES Symposium organized in his honor, 1-3 June 2005, Baton Rouge, USA. Editorships 1. E.C. Aifantis and L. Davison, Media with Microstructures and Wave Propagation, Special Issue of Int. J. Engng. Sci., Vol. 22/Nos. 8-10/pp. 959-1224, Pergammon Press, 1984. 2. E.C. Aifantis and J.P. Hirth, The Mechanics of Dislocations [248 pages], ASM, Metals Park, 1985. 3. E.C. Aifantis and J. Gittus, Phase Transformations [302 pages], Elsevier Appl. Sci. Publ., London-New York, 1986. 4. E.C. Aifantis, Lectures in Engineering Science, Special Issue of Res Mechanica, Vol. 21/No.4/pp.287-400, Elsevier Appl. Sci. Publ., 1987. 5. E.C. Aifantis, D. Walgraef and J. Gittus, Material Instabilities, Special Issue of Res Mechanica,Vol. 23/ Nos. 2-3/ pp. 97305, Elsevier Appl. Sci. Publ., 1988. 6. E.C. Aifantis, Proc. Aristotle’s 23 Centuries Celebration (Thessaloniki/ August 1990), Special Issues of the J. Mechanical Behavior of Materials, Vol.4/Nos.1-4/pp. 1-397 and Vol.5/Nos 1-3/pp. 3-375, Freund Publ. House, 1992-94. 7. E.C. Aifantis, Novel Materials, Processes and Microstructures (Symp. in honor of Th. Skoulikidis; Thessaloniki/ January 1993), [180 pages], Graphima Publ., Thessaloniki, 1993. 8. E.C. Aifantis, Proc. 2nd Euroconference and Int. Symp. on Material Instabilities and Fracture (Thessaloniki/ August 1997) [for 1st Euroconference and US Workshop, held in Thessaloniki in August 1996, ABSTRACTS available], Special Issue of the J. Mechanical Behavior of Materials, Vol.11/Nos.1-3/pp. 1-264, Freund Publ. House, 2000. 9. E.C. Aifantis and A.N. Kounadis, Proc. 6 th Nat. Cong. of Mechanics (In memory of P.S. Theocaris; Thessaloniki/ July 2001), Vols. I [426 pages] / II [406 pages] / III [146 pages], Giahoudi-Giapouli Publ., Thessaloniki, 2001. 10. E.C. Aifantis, Proceedings/Abstracts 5th EUROMECH Solid Mechanics Conference (Thessaloniki/August 2003), Vols. I [426 pages] / II [406 pages] / III [146 pages], Giahoudi-Giapouli Publ., Thessaloniki, 2003. 11. E.C. Aifantis, Proceedings 1st World Symposium on Multiscale Material Mechanics and Engineering Sciences: Dedicated to the Memory of F. Nabarro, E. Hart, R. Rivlin (Thessaloniki - May 2007), forthcoming, 2009. 12. E.C. Aifantis, Plenary/Keynote Lectures and Special Symposia of IC-4N (from Nanoparticles & Nanomaterials to Nanodevices & Nanosystems/Chalkidiki - June 2008), forthcoming, 2009. Scientific Research and Leadership Profile Research E.C. Aifantis has promoted highly interdisciplinary work in mechanics of materials by bringing into the field of solids mechanics ideas from diffusion theory, chemical reactions, and nonlinear physics. Among his initial contributions, while at the University of Illinois, was the development of stress-assisted diffusion theories with applications to hydrogen embrittlement and stress corrosion cracking, as well as flow through porous media theories (double porosity theory) with applications to consolidation and subsidence. This work motivated the concept of viewing a stressed solid as an active medium the deformation of which is governed by the production/annihilation and transport of defect populations. This led to the development of the first models to interpret self-organization of dislocations and deformation patterning. The WalgraefAifantis model was the first to predict widths and spacings of the layered dislocation structure of the persistent slip bands observed in fatigued crystals; this model is contained as an example in Chapter 6 of the Nobelist’s Ilya Prigogine book “Exploring Complexity”, Freeman, New York (1989). This work has motivated, in part, a large number of follow-up works on dislocation patterning, including recent papers on discrete dislocation dynamics simulations (e.g. Kubin, Zbib, Groma and others). Another important contribution (jointly with Jim Serrin) in early eighties, while at the University of Minnesota, was the revisit of Maxwell’s rule and van der Waals theory of fluid interfaces within a strictly mechanical framework incorporating higher order density gradients in the interfacial stress tensor. Among the results were the relocation of Maxwell’s line and the derivation of transition, reversal and periodic solutions for fluid interfaces. This work motivated in part a large number of works in continuum mechanics (Coleman, Gurtin and others) in the area of Continuum Phase Transitions. Later in mid eighties, while at Michigan Tech, he proposed the first gradient plasticity model to predict the thickness of shear bands and eliminate the mesh-size dependence of FE calculations in the strain softening regime. This was used in FE codes developed by de Borst, Tomita and others to solve large-scale engineering problems for which classical plasticity did not work. Other gradient plasticity models such as those proposed by Fleck/Hutchinson and co-workers were developed later in the midnineties and a large number of researchers are working today on such theories for interpreting size effects and other phenomena at the micron scale. In the early and mid nineties, jointly with his experimental collaborators Walter Milligan and Steve Hackney at Michigan Tech, he directed a project on nanostructured materials and “coined” the term “nanomechanics” as he did earlier with “dislocation patterning” and “material instabilities”. They identified, theoretically and experimentally, the critical grain size regime where plasticity transition occurs from grain rotation/sliding in the absence of dislocation activity to intragranular avalanche-like dislocation motion. This mechanism has also been numerically confirmed by MD calculations recently performed by Swygenhoven’s group at PSI-Switzerland. For bulk nanocrystals they discovered another plasticity transition mechanism controlled by “multiple” or “massive” shear banding without any hardening, not observed for the conventional grain size counterparts of these materials which are always strain-hardened. The first mechanical models at the nanoscale to explain the observed behavior were developed at that time and these models are currently being improved for applications to nanotechnology. Since 2000, while at Aristotle University of Thessaloniki where he currently holds his regular appointment (while maintaining a distinguished research professorship at Michigan Tech), he continued with students and postdocs his earlier work on gradient elasticity (by expanding on his non-singular solutions previously derived with his co-workers Altan, Gutkin, Ru et al) which has recently become a popular topic in Greece (Aravas, Beskos, Exadaktylos, Georgiadis, Giannakopoulos, Vardoulakis) and elsewhere (EU, US, China). Work is focused on dislocations/disclinations and cracks/interfaces, as well as nanomaterials including nanotubes and nanomembranes. Gradient theory and multi-element defect kinetics are used to capture mechanical behavior at the nanoscale. Wavelet analysis and neural networks are used for bridging the length scale spectrum. Main senior collaborators included A. Romanov / I. Ovid’ko (St. Petersburg, Russia) on defect theory, A. Carpinteri / N. Pugno (Torino, Italy) on fractals and size effects, S. Forest (Ecole des Mines, France) and P. Steinmann (Univ. Erlangen, Germany) on gradient plasticity, H. Askes (Univ. of Sheffield) and M. Lazar (Darmstadt Univ. Tech.)/G. Maugin (Univ. Paris VI) on gradient elasticity, M. Zaiser (Univ. Edinburgh, UK) on stochastic dynamics/avalanches and random plasticity, I. Groma (Eotvos, Hungary) on discrete dislocation dynamics, and I. Vardoulakis (Nat. Tech. Univ. Athens, Greece) on soil mechanics and granular media. During this period he also supervised a large number of Greek and European doctoral students and postdocs through his coordination of a European TMR/Training and Mobility of Researchers Network on Spatio-Temporal Instabilities in Deformation and Fracture (ERB-FMRX-CT96-0062; 1.76 MECU) and a RTN/Research Training Network on Deformation and Fracture Instabilities in Novel Materials and Processes/DEFINO (HPRN-CT-2002-00198; 1.5 MEuros), and through his participation in a RTN/Research Training Network on Degradation and Instabilities in Geomaterials with Application to Hazard Mitigation/DIGA (HPRN-CT-2002-00220; 175 kEuros), as well as his coordination of 3 INTAS Projects (INTAS-933213; 30kECU, INTAS-93-3213 – extension; 40 kECU, INTAS-94-4380; 24 kECU), in addition to PENED (42 MDrs) and PYTHAGORAS (50 kEuros) Grants from the Greek Government. Leadership Organizer of a series of workshops and symposia on “material instabilities”, “dislocation patterning” and “gradient plasticity”. Active collaboration with colleagues from different countries and disciplines. In a first International Conference organized in Thessaloniki in 1990 under joint sponsorship of the US National Science Foundation and the Commission of European Communities, he supported the participation of about 50 scientists from the former Soviet Union. At that time the idea of establishing an International Research Center in Thessaloniki was conceived. Recently this idea has been revived with the interest of the former Minister of Serbia D. Sumarac (also a Professor of Mechanics at Belgrade University) and International Colleagues in Governmental positions with the attention of the former US Senator P. Sarbanes. Most recently the Laboratory of Mechanics that he is coordinating was chosen by the youngest ERC Starting Grant Recipient K. Aifantis (Physics Today: April 2008 issue; BBC: http://news.bbc.co.uk/2/hi/science/nature/7264828.stm; Science Carreers: http://sciencecareers.sciencemag.org/career_development/previous_issues/articles/2008_03_21/caredit_a0800043) to conduct her 5-year research grant of 1.13 million Euros. Also it has been awarded 2 EC International Incoming Fellowships for A. Romanov and N. Kioussis to conduct their research for the next 2 years with a grant of 200 kEuros each. Research ties are also kept with Michigan Tech and other US Universities (I. Chasiotis – U. of Illinois/Urbana, L. Zhigilei – U. of Virginia, R. Ballarini – U. of Minnesota, S. Eppell - CWRU) through a NIRT grant (Novel Experiments and Models for the Nanomechanics of Polymeric and Biological Nanofibers / NSF NIRT Grant DMI #0532320; 1.3 million USD). Finally, in the last 5 years he actively participated in the establishment of educational curricula in Nanoscience. He has been a founding member of NUE: Undergraduate Exploration of Nano-Science, Applications and Societal Implications at Michigan Tech (http://nano.mtu.edu/nueindex.htm), as well as of the Graduate Program at Aristotle University Nanosciences and Nanotechnologies/NN (http://nn.physics.auth.gr/ensite/index.htm). Partial List of Supervised Young Reserchers (Students/Post-docs) currently in Academia M. Avlonitis (Lecturer - Ionion University - Greece) I. Chasiotis (Assistant Professor - University of Illinois at Urbana-Champaign - USA) G. Efremidis (Part-time Lecturer - University of Volos - Greece) K. Kalaitzidou (Assistant Professor - Georgia Tech - USA) A. Konstantinidis (Lecturer - Aristotle University of Thessaloniki- Greece) I. Mastorakos (Lecturer - Washington State University - USA) I. Tsagrakis (Part-time Lecturer - University Crete - Greece) * T. Ioannidou (Assistant Professor - Aristotle University of Thessaloniki- Greece) * E. Meletlidou (Assistant Professor - Aristotle University of Thessaloniki- Greece) H. Askes (Professor - University of Sheffield) D. Bammann (Chair and Professor - Mississippi State University - USA) P. Cornetti (Assistant Professor - Politecnico di Torino - Italy) M. Seefeldt (Assistant Professor - Katholieke Universiteit Leuven - Belgium) D. Unger (Professor - University of Evansville - USA) M. Zaiser (Professor - University of Edinburgh) H. Zbib (Professor/Director - Washington State University - USA) * M. Brocato (Istituto di Elaborazione della Informazione - Italy) * N. Pugno (Associate Professor - Politecnico di Torino - Italy) * C. di Prisco (Professor - Politecnico di Milano - Italy) * M. Lazar (Head of Emmy Noether Research Group - Darmstadt Univ. Tech. - Germany) * M. Gutkin (Professor - St. Petersburg - Rusia) * K.-Y. Xu (Professor - Shanghai University - China) * In part (3-6 months) and jointy supervised under TMR/RTN Networks PROFESSOR E.C. AIFANTIS List of Publications 1975 1. E.C. Aifantis and W.W. Gerberich, Dislocation dynamics and stress relaxation, Metallurgica Chronica 23, 27-34 (1975). 1976 2. E.C. Aifantis and W.W. Gerberich, A theoretical review of stress relaxation testing, Materials Science and Engineering 21, 107-113, (1976). 3. E.C. Aifantis, Diffusion of a perfect fluid in a linear-elastic stress field, Mechanics Research Communications 3, 245250 (1976). 4. E.C. Aifantis and D.E. Beskos, Dynamic universal solutions for fiber reinforced incompressible isotropic elastic materials, Journal of Elasticity 6, 353-367 (1976). 5. E.C. Aifantis and W.W. Gerberich, Diffusion of gases in linear elastic stress fields, Effect of Hydrogen in Behavior of Materials, pp. 350-354, Wyoming (1976). 1977 6. E.C. Aifantis, Studies on the phenomenon of diffusion of a gas in a stressed heated linear elastic solid: physicomathematical formalism, Technica Chronica 4, 5-10 (1977). I. A 7. E.C. Aifantis, Studies on the phenomenon of diffusion of a gas in a stressed heated linear elastic solid: II. A diffusion theory, Technica Chronica 4, 10-15 (1977). 8. E.C. Aifantis and D.E. Beskos, Inflation bending extension and azimuthal shearing of a fiber-reinforced elastic sector of a circular tube, Acta Mechanica 26, 159-170 (1977). 9. E.C. Aifantis, W.W. Gerberich and D.E. Beskos, Diffusion equations for a mixture of an elastic solid and an elastic fluid, Archives of Mechanics 29, 339-353 (1977). 10. E.C. Aifantis and W.W. Gerberich, Gaseous diffusion in a stressed thermoelastic solid; Part I: The thermomechanical formulation, Acta Mechanica 28, 1-24 (1977). 11. E.C. Aifantis and W.W. Gerberich, Gaseous diffusion in a stressed thermoelastic solid; Part II: Thermodynamic structure and transport theory, Acta Mechanica 28, 25-47 (1977). 12. E.C. Aifantis, D.E. Beskos, and W.W. Gerberich, Diffusion in dislocation fields, Archives of Mechanics 29, 723-740 (1977). 13. E.C. Aifantis and W.W. Gerberich, A path independent integral for symmetric stress-diffusion fields surrounding linecracks, Fracture 77 3, 257-266, Waterloo (1977). 14. E.C. Aifantis, Introducing a multi-porous medium, Developments in Mechanics 9, 209-211, (1977). 15. E.C. Aifantis, Some remarks on the solid state diffusivity tensor, Cancam 77 2, 957-958, Vancouver (1977). 16. E.C. Aifantis, A continuum model for the human placenta, Symposium on Biomechanics (ASME) 23, 197-198, New Haven (1977). 17. E.C. Aifantis and D.E. Beskos, A mathematical model for diffusion in a screw dislocation field, Proc. 1st Int. Conf. on Math. Modeling 3, 1687-1696, (1977). 18. E.C. Aifantis, Mathematical modeling for water flow in stems of plants, Proc. 1st Int. Conf. on Math Modeling 2, 1083-1090, (1977). 19. E.C. Aifantis, Continuum theory of degradation, Environmental Degradation of Engineering Materials, Eds. M.R. Louthan and R.P. McNitt, pp. 151-160, Virginia Tech. Print. Dept., Blacksburg (1977). 20. D.J. Unger and E.C. Aifantis, Solutions of some diffusion equations related to stress corrosion cracking, Environmental Degradation of Engineering Materials, Eds. M.R. Louthan and R.P. McNitt, pp. 131-140, Virg. Tech. Print. Dept., Blacksburg (1977). 21. E.C. Aifantis, A mechanical model for solid state diffusion: effect of the constitutive character, Recent Advances in Engineering Science, pp. 767-772, Bethelem (1977). 1978 22. E.C. Aifantis and W.W. Gerberich, A new form of exact solutions for mode I, II, III crack problems and implications, Engineering Fracture Mechanics 10, 95-108 (1978). 23. E.C. Aifantis and W.W. Gerberich, Diffusion of a gas in a linear elastic solid, Acta Mechanica 29, 169-184 (1978). 24. E.C. Aifantis, A proposal for continuum with microstructure, Mechanics Research Communications 5, 139-145 (1978). 25. E.C. Aifantis, Towards a rational modeling for the human placenta, Mathematical Biosciences 40, 281-301 (1978). 26. E.C. Aifantis, Blood flow in the placenta, 1st Mid-Atlantic Conf. on Bio-Fluid Mech. 7, 85-91 (1978). 27. M. Baer and E.C. Aifantis, Strain rate effects on diffusion, Recent Advances in Engineering Science, 33-37, Gainesville (1978). 28. E.C. Aifantis, Diffusion of a perfect fluid in a linear elastic stress field, Zentralbtatt fur Mathematik 366, (76070) 454 (1978). 29. E.C. Aifantis, Recent results in the phenomenological theory of diffusion in solids, TAM Report No. 430, UILUENG 78-6008, NSF ENG 77-10176, University of Illinois, Urbana (1978). 1979 30. E.C. Aifantis, Continuum basis for diffusion in regions with multiple diffusivity, Journal of Applied Physics 50, 13341338 (1979). 31. E.C. Aifantis, A new interpretation of diffusion in high diffusivity paths-A continuum approach, Acta Metallurgica 27, 683-691 (1979). 32. E.C. Aifantis, Comments on the calculation of the formation volume of vacancies in solids, Physical Review B 19, 6622-6624 (1979). 33. E.C. Aifantis, On the response of fissured rocks, Developments in Mechanics 10, 249-252 (1979). 34. R.K. Wilson and E.C. Aifantis, A coupled diffusion-deformation theory, Developments in Mechanics 10, 255-260 (1979). 35. D.J. Unger and E.C. Aifantis, Flow in stems of plants, 3rd ASCE Eng. Mech. Div. Specialty Conf., pp. 501-504 (1979). 1980 36. P. Varotsos and E.C. Aifantis, Comments on the diffusion of a gas in linear elastic solid, Acta Mechanica 36, 129-133 (1980). 37. E.C. Aifantis and J.M. Hill, On the theory of diffusion in media with double diffusivity I-Basic mathematical results, Quarterly Journal of Mechanics and Applied Mathematics 33, 1-21 (1980). 38. J.M. Hill and E.C. Aifantis, On the theory of diffusion in media with double diffusivity II-Boundary value problems, Quarterly Journal of Mechanics and Applied Mathematics 33, 23-41 (1980). 39. E.C. Aifantis, On the problem of diffusion in solids, Acta Mechanica 37, 265-296 (1980). 40. E.C. Aifantis and D.E. Beskos, Heat extraction from hot dry rocks, Mechanics Research Communications 7, 165-170 (1980). 41. E.C. Aifantis, Further comments on the problem of heat extraction from hot dry rocks, Mechanics Research Communications 7, 219-226 (1980). 42. E.C. Aifantis, On Barenblatt's problem, International Journal of Engineering Science 18, 857-867 (1980). 43. E.C. Aifantis, Preliminaries on degradation and chemomechanics, NSF Workshop on a Continuum Mechanics Approach to Damage and Life Prediction, Eds. D.C. Stouffer, E. Krempl, J.E. Fitzgerald, pp. 159-173, Carrolton (1980). 44. E.C. Aifantis, The mechanics of diffusion in solids, TAM Report No. 440, UILU-ENG 80-6001, NSF ENG 7710176, University of Illinois, Urbana (1980). 45. E.C. Aifantis, Continuum theories of diffusion and infiltration: Part I, Engineering Science Perspective 5, 10-20 (1980). 1981 46. E.C. Aifantis, Elementary physicochemical degradation processes, Mechanics of Structured Media, Ed. A.P.S. Selvadurai, pp. 301-317, Elsevier, Amsterdam-Oxford-New York (1981). 47. D.J. Bammann and E.C. Aifantis, On the perfect lattice-dislocated state interaction, Mechanics of Structured Media, Ed. A.P.S. Selvadurai, pp. 79-91, Elsevier, Amsterdam-Oxford-New York (1981). 48. R.K. Wilson and E.C. Aifantis, The skin effect in double porosity media, Mechanics of Structured Media, Ed. A.P.S. Selvadurai, pp. 335-341, Elsevier, Amsterdam-Oxford-New York (1981). 49. E.C. Aifantis, Continuum theories of diffusion and infiltration: Part II, Engineering Science Perspective, Vol. 6 pp. 920. (*This was actually printed in the last issue of SES perspective in 1987). 50. E.C. Aifantis, Embrittlement: A continuum formulation, in Environm. Degrad. Engng. Matls., in Hydrogen, Eds. M.R. Louthan, R.P. McNitt, R.D. Sisson, pp. 215-221, Virg. Tech. Print. Dept., Blacksburg (1981). 51. W.W. Gerberich and E.C. Aifantis, Stress corrosion cracking. A continuum formulation, in: Environm. Degrad. Engrg. Matls. in Hydrogen, Eds., M.R. Louthan, R.P. McNitt, R.D. Sisson, pp. 557-563, Virg. Tech. Print. Dept., Blacksburg (1981). 52. D.J. Unger and E.C. Aifantis, Coupled stress-concentration spinodals, in: Environm. Degrad. Engng. Matls. in Hydrogen, Eds. M.R. Louthan, R.P. McNitt, R.D. Sisson, pp. 585-591, Virg. Tech. Print. Dept., Blacksburg (1981). 1982 53. P.A. Taylor and E.C. Aifantis, On the theory of diffusion in linear viscoelastic media, Acta Mechanica 44, 259-298 (1982). 54. D.J. Bammann and E.C. Aifantis, On a proposal for a continuum with microstructure, Acta Mechanica, 45, 91-121 (1982). 55. R.K. Wilson and E.C. Aifantis, On the theory of stress assisted diffusion - I, Acta Mechanica 45, 273-296 (1982). 56. R.K. Wilson and E.C. Aifantis, On the theory of consolidation with double porosity - I, Int. J. Eng. Sci. 20, 1009-1035 (1982). 57. J.A. Colios and E.C. Aifantis, On the problem of continuum theory of embrittlement, Res Mechanica 5, 67-85 (1982). 58. D.J. Unger, W.W. Gerberich, and E.C. Aifantis, Further remarks on the implications of steady state stress assisted diffusion on environmental cracking, Scripta Metallurgica 16, 1059-1064 (1982). 59. D.J. Unger and E.C. Aifantis, On the theory of stress assisted diffusion with implications for environmental cracking phenomena, 9th U.S. NCAM, pp. 489-490, ASME (1982). 60. E.C. Aifantis and J.B. Serrin, Towards a mechanical theory of phase transformations, Technical Research Center, University of Minnesota (1980,82). Report, Corrosion 61. E.C. Aifantis, Some thoughts on degrading materials, in: NSF Workshop on Mechanics of Damage and Fracture, pp. 112, Eds. S.N. Atluri and J.E. Fitzgerald, Atlanta (1982). 1983 62. E.C. Aifantis, Dislocation kinetics and the formation of deformation bands, Defects Fracture and Fatigue, Eds. G.C. Sih & J.W. Provan, pp. 75-84, Martinus Nijhoff (1983). 63. D.J. Unger and E.C. Aifantis, On the theory of stress assisted diffusion - II, Acta Mechanica 47, 117-151 (1983). 64. D.J. Unger, W.W. Gerberich, and E.C. Aifantis, Further remarks on an exact solution for crack problems, Engineering Fract. Mech. 18, 735-742 (1983). 65. V. Alexiades and E.C. Aifantis, Singular problems in the theory of stress assisted diffusion, SIAM J. Math. Anal. 14, 925-933 (1983). 66. M.E. Plesha and E.C. Aifantis, On the modeling of rocks with microstructures, 24th U.S. Symp. on Rock Mechanics, Ed. E.R. Hoskins, pp. 27-35, ASTM (1983). 67. E.C. Aifantis and J.B. Serrin, The mechanical theory of fluid interfaces and Maxwell's rule, J. of Colloid and Interface Sciences 96, 517-529 (1983). 68. E.C. Aifantis and J.B. Serrin, Equilibrium solutions in the mechanical theory of fluid microstructures, J. of Colloid and Interface Sciences 96, 530-547 (1983). 1984 69. M.Y. Khaled, D.E. Beskos and E.C. Aifantis, On the theory of consolidation with double porosity - III: A finite element formulation, Int. J. Num. Anal. Meth. Geomech. 8, 101-123 (1984). 70. E.C. Aifantis, Microscopic processes and macroscopic response, in: Mechanics of Engineering Materials, Eds. C.S. Desai and R.H. Gallagher, pp. 1-22, Wiley (1984). 71. E.C. Aifantis, On the Mechanics of modulated structures, in: Modulated Structure Materials, NATO ASI Series 83, Ed. T. Tsakalakos, pp. 357-385, Martinus-Nijhoff (1984). 72. E.C. Aifantis, Maxwell and van der Waals revisited, in: Phase Transformations in Solids, Ed. T. Tsakalakos, pp. 37-49, North-Holland (1984). 73. E.C. Aifantis, Remarks on media with microstructures, Int., J. Engng. Sci. 22, 961-968 (1984). 74. D.J. Unger and E.C. Aifantis, Dynamic effects in spinodal decomposition, Int. J. Engng. Sci. 22, 1219-1224 (1984). 75. R.K. Wilson and E.C. Aifantis, A double porosity model for acoustic wave propagation in fractured-porous rock, Int. J. Engng. Sci. 22, 1209-1217 (1984). 76. E.C. Aifantis, Towards a continuum approach to dislocation patterning, in: Dislocations in Solids-Recent Advances, AMD-63, Ed. X. Markenscoff, pp. 23-33, ASME (1984). 77. E.C. Aifantis, On the microstructural origin of certain inelastic models, Transactions of ASME, J. Engng. Mat. Tech. 106, 326-330 (1984). 78. G.R. Buchanan, J.C. Bennett, and E.C. Aifantis, A variational function for material degradation, in: Eng. Mech. in Civil Engrg., Ed. A.P. Boresi and K.P. Chong, pp. 168-171, ASCE-EMD (1984). 79. E.C. Aifantis (Editor), Mechanics of microstructures, MM Reports Nos. 1-10, Dept. ME-EM, Michigan Technological University (1984). 80. E.C. Aifantis and L. Davison (Editors), Media with Microstructures and Wave Propagation [Proc. of a Symp. held in Houghton, MI, Jan. 24-25, 1983], Special Issue of Int. J. Eng. Sci. Vol. 22, Nos. 8-10, Pergamon Press (1984), [pp. 959-1224]. 1985 81. A. Neimitz and E.C. Aifantis, On certain fracture mechanics considerations in environmental Dependent Fracture, Ed. A.S. Krausz, pp. 189-200, Martinus-Nijhoff (1985). cracking, in: Time- 82. E.C. Aifantis, On dislocation patterning, in: Dislocations in Solids, Eds. H. Suzuki, T. Ninomiya, K. Sumino, S. Takeuchi, pp. 41-47, Tokyo Univ. Press (1985). 83. D. Walgraef and E.C. Aifantis, On the formation and stability of dislocation patterns - I. One-dimensional considerations, Int. J. Eng. Sci. 23, 1351-1358 (1985). 84. D. Walgraef and E.C. Aifantis, On the formation and stability of dislocation patterns - II. Two-dimensional considerations, Int. J. Eng. Sci. 23, 1359-1364 (1985). 85. D. Walgraef and E.C. Aifantis, On the formation and stability of dislocation patterns - III. Three-dimensional considerations, Int. J. Eng. Sci. 23, 1365-1372 (1985). 86. E.C. Aifantis, Continuum models for dislocated states and media with microstructures, in: Mechanics of Dislocations, Eds. E.C. Aifantis and J.P. Hirth, pp. 127-146, ASM, Metals Park (1985). 87. D. Walgraef and E.C. Aifantis, Dislocation patterning in fatigued metals as a result of dynamical instabilities, J. Appl. Phys. 58, 688-691 (1985). 88. E.C. Aifantis, Current topics in geomaterials, in: Soil Dynamics & Earthquake Engineering Eds. C.A. Brebbia, A.S. Cakmak, and A.M. Abdel Ghaffar, pp. 51-53, Springer-Verlag (1985). 89. E.C. Aifantis (Editor), Mechanics of microstructures, MM Report No.11, Dept. of ME-EM, Michigan Technological University (1985). 90. E.C. Aifantis, Book Review [Micromechanics of Defects in Solids by T. Mura, Martinus-Nijhoff 1982], Crystal Latt. Defects 11, 273-274 (1985). 91. E.C. Aifantis and J.P. Hirth (Editors), The Mechanics of Dislocations [Proc. of an Int. Symp. held in Houghton, MI, Aug. 28-31, 1983], ASM, Metals Park (1985) [248 pages]. 1986 92. E.C. Aifantis, Application of mixture theory to fluid saturated geological media, in: Compressibility Phenomena in Subsidence, Ed. S.K. Saxena, pp. 65-78, Publ. Engng. Foundation, New York (1986). 93. E.E. Gdoutos and E.C. Aifantis, The method of caustics in environmental cracking, Eng. Fract. Mech. 23, 423-430 (1986). 94. E.E. Gdoutos and E.C. Aifantis, Environmental cracking under mixed-mode conditions, Eng. Fract. Mech. 23, 431-439 (1986). 95. V. Alexiades and E.C. Aifantis, On the thermodynamic theory of fluid interfaces: Infinite solutions, and minimizers, J. Coll. Interf. Sci. 111, 119-132 (1986). intervals, equilibrium 96. H. Zbib and E.C. Aifantis, Instabilities during tension of thin voided viscoplastic sheets, Metall. Trans. 17A, 1637-1640 (1986). 97. N. Triantafyllidis and E.C. Aifantis, A gradient approach to localization of deformation - I. Hyperelastic materials, J. of Elasticity 16, 225-238 (1986). 98. E.C. Aifantis, On the dynamical origin of dislocation patterns, Mater. Sci. Eng. 81, 563-574 (1986). 99. Item #98 above also printed in a hard bound volume "Low Energy Dislocation Structures", Eds., M.N. Bassim, W.A. Jesser, D. Kuhlman-Wilsdorf, pp. 563-574 and H.G.F. Wilsdorf, Elsevier Sequoia, Lausanne (1986). 100. E.C. Aifantis and J. Gittus (Editors), Phase Transformations, Elsevier Appl. Sci. Publ., London-New York (1986) [302 pages]. 101. E.C. Aifantis, The mechanics of phase transformations, in: Phase Transformations, Eds. E.C. Aifantis and J. Gittus, pp. 233-289, Elsevier Appl. Sci. Publ., London-New York (1986). 102. E.C. Aifantis, Mechanics of microstructures - I. Continuum mechanics, thermodynamics and microstructures, in: Mechanical Properties and Behaviour of Solids: Plastic Instabilities [ICTP Enrico Fermi School of Theoretical Physics, Trieste, Italy], Eds. V. Balakrishnan and C.E. Bottani, pp. 314-331, World Scientific, Singapore (1986). 103. E.C. Aifantis, Mechanics of microstructures - II. Single slip, dislocations and plasticity, in: Mechanical Properties and Behavior of Solids: Plastic Instabilities [ICTP Enrico Fermi School of Theoretical Physics, Trieste, Italy], Eds. v. Balakrishnan and C.E. Bottani, pp. 332-343, World Scientific, Singapore (1986). 104. E.C. Aifantis, Mechanics of microstructures - III. Instabilities, persistent slip bands, and shear localization, in: Mechanical Properties and Behaviour of Solids: Plastic Instabilities [ICTP Enrico Fermi School of Theoretical Physics, Trieste, Italy], Eds. V. Balakrishnan and C.E. Bottani, pp. 347-353, World Scientific, Singapore (1986). 105. Y. Chang and E.C. Aifantis, Internal variable approach to inelastic deformation, in: Mechanical Properties and Behaviour or Solids: Plastic Instabilities [ICTP Enrico Fermi School of Theoretical Physics, Trieste, Italy], Eds. V. Balakrishnan and C.E. Bottani, pp. 344-346, World Scientific, Singapore (1986). 106. E.C. Aifantis, On the structure of single slip and its implications to inelasticity, in: Large Deformations of Solids Physical Basis and Mathematical Modelling (Jean Mandel in Memoriam), Eds. J. Gittus, J. Zarka, and S. Nemat-Nasser, pp. 283-323, Elsevier Appl. Sci. (1986). 107. Y.F. Dafalias and E.C. Aifantis, On the origin of large plastic rotations and spin, in: Physical Basis and Modelling of Finite Deformations of Aggregates (Jean Mandel in Memoriam), Eds., J. Gittus, S. Nemat-Nasser, and J. Zarka, pp. 323-325, Elsevier Appl. Sci. (1986). 108. D. Walgraef and E.C. Aifantis, Dislocation patterning in fatigued metals: Labyrinth structures and rotational effects, Int. J. Eng. Sci. 1789-1798 (1986). 109. D.E. Beskos and E.C. Aifantis, On the theory of consolidation with double porosity-II, Int. J. Eng. Sci. 24, 1697-1716 (1986). 1987 110. A. Neimitz and E.C. Aifantis, On the size and shape of the process zone, Eng. Fract. Mech. 26, 491-503 (1987). 111. A. Neimitz and E.C. Aifantis, On the length of crack jump during subcritical growth, Eng. Fract. Mech. 26, 505-518 (1987). 112. E.C. Aifantis, The Physics of plastic deformation, Int. J. Plasticity 3, 211-247 (1987). 113. E.C. Aifantis (Editor), Lectures in engineering science, Special Issue of Res Mechanica, pp. 287-400, Elsevier Appl. Sci. Publ. (1987). 114. E.C. Aifantis, On the patterning of microstructures and deformation, in: Cont. Models of Discrete Systems CMDS5, Ed. A.J.M. Spencer, pp. 21-26, Balkena, Rottendam (1987). 115. D. Walgraef, C. Schiller, and E.C. Aifantis, Reaction-diffusion approach for dislocation patterns, in: Patterns, Defects, and Microstructures in Nonequilibrium Systems, Ed. D. Walgraef, pp. 257-269, Martinus-Nijhoff (1987). 116. H.M. Zbib and E.C. Aifantis, Constitutive relations for large material rotations, in: Constitutive Laws for Engineering Materials - Theory & Applications, pp.1411-1418, Ed. C.S. Desai, Elsevier (1987). 117. Y.W. Chang and E.C. Aifantis, Constitutive relations based on the internal strain tensor, in: Engineering Materials - Theory & Applications, Ed. C.S. Desai, pp. 293-300, Elsevier (1987). Constitutive Laws for 118. E.C. Aifantis, Towards a mechanics of microstructures, in: Constitutive Laws for Engineering Materials - Theory & Applications, Ed. C.S. Desai, pp. 3-10, Elsevier (1987). 119. E.C. Aifantis, The mechanics of phase transformations, in: Math. Modell. in Science and Technology - The 5th Int. Conf. (1985), Ed. X.J.R. Avula et al, pp. 306-310, Pergamon (1987). 120. A. Neimitz and E.C. Aifantis, On the role of process zone in hydrogen assisted cracking, in: Mechanical Behavior of Materials V, Proc. 5th Int. Conf. in Beijing China, Eds. M.G. Yan et al, pp. 861-870, Pergamon, Oxford (1987). 121. E.C. Aifantis, On the heterogeneity of plastic deformation, in: Const.Relations and Their Physical Basis, Proc. 8th Riso Int. Symp. on Metallurgy and Materials Sci., Eds. S.I. Anderson et al., pp. 205-219, Riso Nat. Lab. Roskilde, Denmark (1987). 122. K. Kuttler and E.C. Aifantis, Existence and uniqueness in nonclassical diffusion, Quart. J. Appl. Math. 45, 549-560 (1987). 123. D.J. Bammann and E.C. Aifantis, A model for finite deformation plasticity, Acta Mechanica 69, 97-117 (1987). 1988 124. D.J. Bammann and E.C. Aifantis, An anisotropic hardening model of plasticity, in: Comput. Engng. Sci. ICES-88, Eds. S.N. Atluri & G. Yagawa, pp. 16.iii.1-16.iii.4, Atlanta (1988). 125. E.C. Aifantis, D. Walgraef and H. Zbib (Editors), Material Instabilities, Special Issue of Res. Mechanica, pp. 97-305, Elsevier Appl. Sci. Publ. (1988). 126. K. Kuttler and E.C. Aifantis, Quasilinear evolution equations in nonclassical diffusion, SIAM J. Math. Anal. 19, 110120 (1988). 127. D. Walgraef and E.C. Aifantis, Plastic instabilities, dislocation patterns and nonequilibrium phenomena, Res Mechanica 23, 161-195 (1988). 128. H.M. Zbib and E.C. Aifantis, On the localization and postlocalization behavior of plastic deformation - I: On the initiation of shear bands, Res Mechanica 23, 261-277 (1988). 129. H.M. Zbib and E.C. Aifantis, On the localization and postlocalization behavior of plastic deformation - II: On the evolution and thickness of shear bands, Res. Mechanica 23, 279-292 (1988). 130. H.M. Zbib and E.C. Aifantis, On the localization and postlocalization behavior of plastic deformation - III: On the structure and velocity of the Portevin-Le Chatelier bands, Res Mechanica 23, 293-305 (1988). 131. H.M. Zbib and E.C. Aifantis, On the structure and width of shear bands, Scripta Met. 22, 703-708 (1988). 132. H.M. Zbib and E.C. Aifantis, A gradient-dependent model for the Portevin-Le Chatelier effect, Scripta Met. 22, 13311336 (1988). 133. T.W. Webb, W.W. Predebon, and E.C. Aifantis, Dislocation dynamics and lamellar termination softening in Co-CoAl eutectics, Scripta Met. 22, 1655-1660 (1988). 134. E.C. Aifantis, On the problem of dislocation patterning and persistent slip bands in: Nonlinear Phenomena in Materials Science (Solid State Phenomena Vols. 3 and 4), Eds. L. Kubin and G. Martin, pp. 397-406, Trans Tech Publ. (1988). 135. H.M. Zbib and E.C. Aifantis, On the concept of relative and plastic spins and its implications to large deformation theories, Part I: Hypoelasticity and vertex-type plasticity, Acta Mechanica 75, 15-33 (1988). 136. H.M. Zbib and E.C. Aifantis, On the concept of relative and plastic spins and its implications to large deformation theories, Part II: Anisotropic hardening plasticity, Acta Mechanica 75, 35-56 (1988). 137. A Neimitz and E.C. Aifantis, On the role of process zone in hydrogen assisted cracking I. Threshold conditions, Eng. Fract. Mech. 31, 9-18 (1988). 138. A. Neimitz and E.C. Aifantis, On the role of process zone in hydrogen assisted cracking II. Kinetic conditions, Eng. Fract. Mech. 31, 19-25 (1988). 139. D.J. Unger and E.C. Aifantis, Completeness of solutions in the double porosity theory, Acta Mechanica 75, 269-274 (1988). 140. E.C. Aifantis, Dislocation patterns and deformation bands, in: Advances in Phase Transitions, Eds. J.D. Embury and G.R Purdy, pp. 231-247, Pergamon Press (1988). 141. A. Neimitz and E.C. Aifantis, On certain aspects of the hydrogen assisted cracking, Arch. Mech. 40, 135-148 (1988). 1989 142. H.M. Zbib and E.C. Aifantis, Instabilities in metals and geomaterials: A gradient approach, in: PACAM Congress of Applied Mechanics, Eds. C.R. Steele & L. Bevilacqua, pp. 532-535, PUC-Rio, Brazil (1989). 143. D.J. Bammann and E.C. Aifantis, A damage model for ductile metals, J. Nuclear Engng. and Design 116, 355-362 (1989). 144. I. Vardoulakis and E.C. Aifantis, Gradient dependent dilatancy and its implications in shear banding and liquefaction, Ingenieur-Archiv 59, 197-208 (1989). 145. D. Meyn, T. Webb and E.C. Aifantis, Hydrogen assisted cracking studies of 4340 steel by using the optical method of caustics, Eng. Fract. Mech. 33, 913-925 (1989). 146. E.C. Aifantis, "Nonlinearity and Selforganization in Plasticity", in: Advances in Plasticity Eds. A.S. Khan and M. Tokuda, pp. 537-540, Pergamon Press (1989). 147. E.C. Aifantis, Higher order gradients in plastic flow and failure, in: Advances in Constitutive Laws for Engineering Materials, Eds. F. Jinghong and S. Murakami, pp. 3-9, Pergamon Press (1989). 148. E.C. Aifantis, Plasticity and selforganization, in: Advances in Constitutive Laws for Engineering Materials, Eds. F. Jinghong and S. Murakami, pp. 893-905, Pergamon Press (1989). 149. H.M. Zbib and E.C. Aifantis, A gradient-dependent flow theory of plasticity: Application to metal and soil instabilities, Appl. Mech. Rev. 42, 295-304 (1989). 150. Item #149 above also printed in a hard bound volume "Mechanics Pan-America 1989", Eds. C.R. Steele, A.W. Leissa, and M.R.M. Crespo da Silva, pp. S295-S304, ASME Press, NY (1989). 151. T.W. Webb and E.C. Aifantis, Stick-slip peeling, ASME Winter Annual Meeting, San Francisco, Paper No. 89-WAEEP-7 (1989). 152. E.C. Aifantis, Softening and higher order gradients in plasticity and damage, in: Proc. Int. Conf. Appl. Mech., Ed. Zheng Zhemin, pp. 1316-1320, Pergamon Press (1989). 1990 153. E.C. Aifantis, Contemporary topics in plastic deformation: Anisotropy, texture, voids, and shear bands, in: Proc. IUTAM/ICM Symp. on Yielding Damage and Failure of Anisotropic Solids (A. Sawczuk in Memoriam), Ed. J.P. Boehler, pp. 319-333, Mechanical Engineering Publ., Suffolk, England (1990). 154. Y. Estrin, Chr. Abromeit, and E.C. Aifantis, Possible role of deformation-induced point defects in dislocation patterning, Physica Status Solidi 157, 117-128 (1990). 155. D. Walgraef and E.C. Aifantis, Dislocation inhomogeneity in cyclic deformation, in: Micromechanics and Inhomogeneity - The Toshio Mura Anniversary Volume, Eds. G.J. Weng, M. Taya and H. Abe, pp. 511-533, Springer Verlag (1990). 156. T.W. Webb, E.E. Gdoutos, and E.C. Aifantis, A preliminary report on 3D effects on caustics, Engng. Fract. Mech. 35, 1121-1124 (1990). 157. T.W. Webb, D.A. Meyn, and E.C. Aifantis, Three dimensional aspects of the fracture process zone and caustics, in: Constitutive Laws of Plastic Deformation and Fracture, Ed. A.S. Krausz, pp. 245-251, Kluwer (1990). 158. N.C. Charalambakis and E.C. Aifantis, On stress controlled thermoviscoplastic shearing and higher-order strain gradients, Acta Mechanica 81, 109-114 (1990). 159. D.J. Unger and E.C. Aifantis, Equilibrium of a solute in an elastic continuum - A statistical approach, Acta Mechanica 81, 227-233 (1990). 160. E.E. Gdoutos and E.C. Aifantis, Solute distribution in crack tips under mixed mode I/II conditions, Acta Mechanica 82, 1-9 (1990). 161. Y. Dafalias and E.C. Aifantis, On the microscopic origin of plastic spin, Acta Mechanica 82, 31-48 (1990). 162. M.F. Shi, J.C. Gerdeen, and E.C. Aifantis, On finite deformation plasticity with directional softening: Part I. Onecomponent model, Acta Mechanica 83, 103-117 (1990). 163. K. Kuttler and E.C. Aifantis, A Note on the Paper "On the thermodynamic theory of fluid interfaces: Infinite intervals, equilibrium solutions, and minimizers", J. Coll. Interf. Sci. 138, 280-281 (1990). 164. K. Kuttler and E.C. Aifantis, Existence, uniqueness, and long-time behavior of materials with non-monotone equations of state and higher order gradients, Quart. J. Appl. Math. 48, 473-489 (1990). 165. N.C. Charalambakis and E.C. Aifantis, On the problem of shear instability of a finite thermoviscoplastic slab: A gradient approach, Mech. Res. Comm. 17, 231-238 (1990). 166. E.C. Aifantis, Nonlinearity and selforganization in plasticity and fracture, in: Patterns, Defects, and Materials Instabilities, NATO ASI Series E-Vol. 183, Eds. D. Walgraef and N.M. Ghoniem, pp. 221-239, Kluwer (1990). 167. E.C. Aifantis, Aspects of nonlinearity and selforganization in plastic deformation, in: Disorder and Fracture, NATO ASI Series B-Vol. 235, Eds. J.C. Charmet, St. Roux and E. Guyon, pp. 239-251, Plenum Press (1990). 1991 168. N. Aravas and E.C. Aifantis, On the geometry of slip and spin in finite plastic deformation, Int. J. Plast. 7, 141-160 (1991). 169. E.C. Aifantis, A proposal for a new understanding of the crack tip - A nonlinear approach, in: Constitutive Laws for Engineering Materials - Theory & Applications, Eds. C.S. Desai et al, pp. 493-500, ASME Press (1991). 170. F.Oka, A. Yashima, T. Adachi, and E.C. Aifantis, A gradient dependent viscoplastic model for clay, in: Constitutive Laws for Engineering Materials - Theory & Applications, Eds. C.S. Desai et al, pp. 313-316, ASME Press (1991). 171. M.F. Shi, J.C. Gerdeen and E.C. Aifantis, On the coupling of deformation heating and contact friction during strain localization - Application to the strip friction test, Res Mechanica 31, 365-390 (1991). 172. N. Charalambakis, A. Rigatos, and E.C. Aifantis, The stabilizing role of higher order strain gradients in nonlinear thermoviscoplasticity, Acta Mechanica 86, 65-81 (1991). 173. E.I. Meletis and E.C. Aifantis, On the length of crack advance during hydrogen-assisted cracking, Scripta Met. 25, 847852 (1991). 174. H.B. Muhlhaus, R. de Borst, and E.C. Aifantis, Constitutive models and numerical analyses for inelastic materials with microstructure, in: Computer Methods and Advances in Geomechanics, Eds. G. Beer et al, pp. 377-385, Balkema Publ., Rotterdam, (1991). 175. I. Vardoulakis, H.B. Muhlhaus, and E.C. Aifantis, Continuum models for localized deformations in pressure sensitive materials, in: Computer Methods and Advances in Geomechanics, Eds. G. Beer et al, pp. 441-448, Balkema Publ., Rotterdam, (1991). 176. I. Vardoulakis and E.C. Aifantis, A gradient flow theory of plasticity for granular materials, Acta Mechanica 87, 197217 (1991). 177. H.B. Muhlhaus and E.C. Aifantis, A variational principle for gradient plasticity, Int. J. Solids Struct. 28, 845-857 (1991). 178. N. Charalambakis and E.C. Aifantis, Thermoviscoplastic shear instability and higher order strain gradients, Int. J. Engng. Sci. 29, 1639-1650 (1991). 179. G.L. Panger, J.L. Ding, H.M. Zbib, and E.C. Aifantis, Measurements of shear band characteristics in low carbon steel using photoelasticity, Scripta Met. 25, 2103-2108 (1991). 180. F. Oka, A. Yashima, T. Adachi, and E.C. Aifantis, Gradient dependent viscoplastic model for clay and numerical experiments by FEM, in: Mechanical Behavior of Materials - VI, eds. M. Jono and T. Inoue, pp. 203-208, Pergamon Press (1991). 181. F. Oka, A. Yashima, T. Adachi, and E.C. Aifantis, FEM analysis of water saturated soil by a gradient dependent elastoviscoplastic model, in: Anisotropy and Localization of Plastic Deformation, Eds. J.P. Boehler and A.S. Khan, pp. 258261, Elsevier Appl. Sci. (1991). 182. H.M. Zbib and E.C. Aifantis, On the structure and width of shear bands in finite elastoplastic deformations, in: Anisotropy and Localization of Plastic Deformation, Eds. J.P. Boehler and A.S. Khan, pp. 99-102, Elsevier Appl. Sci. (1991). 183. H.B. Muhlhaus and E.C. Aifantis, The influence of microstructure-induced gradients on the localization of deformation in viscoplastic materials, Acta Mechanica 89, 217-231 (1991). 184. A. Neimitz and E.C. Aifantis, Corrigenda: On the size and shape of the process zone, Eng. Fract. Mech. 39, 1099 (1991). 185. E.C. Aifantis, D. Walgraef, V.G. Bariyakhtar and S.P. Efimenko, Transition in the dislocation system and formation of dissipative dislocation structures (in Russian), Ukranian J. of Physics 36, 1068-1071 (1991). 1992 186. H.M. Zbib and E.C. Aifantis, On the gradient-dependent theory of plasticity and shear banding, Acta Mechanica 92, 209-225 (1992). 187. H.M. Zbib and E.C. Aifantis, On the stability of finite plastic deformations, in: Finite Inelastic Deformations - Theory and Applications (IUTAM Symp.-Hannover/Germany, 1991), Eds. D. Besdo and E. Stein, pp. 15-25, Springer-Verlag (1992). 188. E.C. Aifantis, On the gradient approach to deformation and fracture, in: Non Linear Phenomena in Materials Science II (Solid State Phenomena Vols. 23 & 24), Eds. G. Martin and L. Kubin, pp. 355-368, Transtech Publ. (1992). 189. F. Oka, A. Yashima, T. Adachi,and E.C. Aifantis, Instability of gradient dependent viscoplastic model for clay saturated with water and FEM analysis (Symp. on Material Instabilities, 22nd Midw. Mech. Conf., Eds. H.M. Zbib, T.G. Shawki and R.C. Batra), Appl. Mech. Rev. 45, 140-148 (1992). 190. H. Zhu, H.M. Zbib, and E.C. Aifantis, On the effect of anisotropy and inertia on shear banding: Instability of biaxial stretching-(Symp. on Material Instabilities, 22nd Midwestern Mech. Conf., Eds. H.M. Zbib, T.G. Shawki and R.C. Batra), Appl. Mech. Rev. 45, 110-117 (1992). 191. B. Altan and E.C. Aifantis, On the structure of the mode III crack-tip in gradient elasticity, Scripta Met. Mater. 26, 319324 (1992). 192. T.W. Webb, T. Vandenbrink, E.I. Meletis, and E.C. Aifantis, Specimen thickness effects on caustics, Scripta Met. Mater. 26, 591-596 (1992). 193. E.C. Aifantis, On the role of gradients in the localization of deformation and fracture, Int. J. Engrg. Sci. 30, 1279-1299 (1992). 194. E.C. Aifantis, Mechanics aspects in micro- and nano-scales, in: Microstructural Characterization in Constitutive Modeling of Metals and Granular Media, MD - Vol. 32, Ed. G.Z. Voyiadjis, pp. 1-3, ASM (1992). 195. W.W. Milligan, S.A. Hackney and E.C. Aifantis, Observations and modelling of deformation and fracture in nanostructural materials, in: AFOSR Mechanics of Composites Review, pp. 1-10, Wright Patterson Lab (1992). 196. W.W. Milligan, S.A. Hackney and E.C. Aifantis, Deformation and damage at the nanoscale: Preliminary observations and modelling, in: Damage Mechanics & Localization, AMD - Vol. 142/MD-Vol. 34, Eds. J.W. Ju and K.C. Valanis, pp. 153-165, ASME (1992). 197. A.G. Konstandopoulos and E.C. Aifantis, Crack growth by stress-assisted migration of point defects, in: Proc. lst Nat. Congr. on Computational Mechanics, Vol. 1, (Greek Assoc. of Computational Mechanics), Ed. D.E. Beskos, pp. 55-60, Univ. Patras Press (1992). 1993 198. E.C. Aifantis, Higher order gradients and self-organization at nano, micro, and macro scales, in: Continuum Models for Discrete Systems CMDS-7 (Mat. Sci. Forum, Vols. 123-125), Eds. K.H. Anthony and H.J. Wagner, pp. 553-566, Trans. Tech. Publ. (1993). 199. S.B. Lin, J.L. Ding, H.M. Zbib and E.C. Aifantis, Characterization of yield surfaces using balanced biaxial tests of cruciform plate specimens, Scripta Met. Mater. 28, 617-622 (1993). 200. A.E. Romanov and E.C. Aifantis, On the kinetic and diffusional nature of linear defects, Scripta Met. Mater. 29, 707712 (1993). 201. W.W. Milligan, S.A. Hackney, M. Ke and E.C. Aifantis, In situ studies of deformation and fracture in nanophase materials, Nanostructured Materials 2, 267-276 (1993). 202. M. Ke, W.W. Milligan, S.A. Hackney, J.E. Carsley and E.C. Aifantis, HREM study of fracture and deformation behavior of nanostructured thin films, in: Thin Films-Stresses and Mechanical Properties, MRS Proc. Vol. 308, pp. 565569, MRS (1993). 203. Y. Estrin, L.P. Kubin and E.C. Aifantis, Introductory remarks to the viewpoint set in propagative plastic instabilities, Scripta Met. Mater. 29, 1147-1150, (1993). 204. M.F. Shi, J.C. Gerdeen and E.C. Aifantis, On finite deformation plasticity with directional softening-Part II: Twocomponent model, Acta Mechanica 101, 69-80 (1993). 205. C.Q. Ru and E.C. Aifantis, A simple approach to solve boundary value problems in gradient elasticity, Acta Mechanica 101, 59-68 (1993). 1994 206. J. Ning and E.C. Aifantis, On anisotropic finite deformation plasticity - Part I: A two-back stress model, Acta Mechanica 106, 55-72 (1994). 207. J. Ning and E.C. Aifantis, On anisotropic Mechanica 106, 73-85 (1994). finite deformation plasticity-Part II: A two-component model, Acta 208. I. Vardoulakis and E.C. Aifantis, On the role of microstructure in the behavior of soils: Effects of higher order gradients and internal inertia, Mechanics of Materials 18, 151-158 (1994). 209. J.M. Salazar, R. Fournet and E.C. Aifantis, Dislocation patterns induced by non-linear dislocations interactions: Spatial and temporal behavior, J. Mech. Behavior Mats. 5, 335-353 (1994). 210. E.C. Aifantis, Gradient effects at macro, micro, and nano scales, J. Mech. Behavior Mats. 5, 355-375 (1994). 211. A.E. Romanov and E.C. Aifantis, Diffusion-like defect kinetics: Application to different plastic instabilities, in: Strength of Materials (JIMIC-2, ISCMA 10), Eds. H. Oikawa et al, pp. 307-310, Japan Institute of Metals (1994). 212. E.C. Aifantis, Spatio-temporal instabilities in deformation and fracture, in: Computational Materials Modeling, ADVol. 42/PVP-Vol. 294, Eds. A.K. Noor and A. Needleman, pp. 199-222, ASME, New York (1994). 213. F. Oka, A. Yashima, T. Adachi and E.C. Aifantis, Strain and pore water pressure localization in soft clay, in: Materials Instabilities - Theory and Application, AMD-Vol. 183/MD-Vol. 50, Eds. R.C. Batra and H.M. Zbib, pp. 11-18, ASME, New York (1994). 214. A.E. Romanov and E.C. Aifantis, Defect kinetics in crack instabilities, Scripta Met. Mater. 30, 1293-1298 (1994). 215. A.E. Romanov and E.C. Aifantis, Nonuniform misfit dislocation distributions in films, Scripta Met. Mater. 30, 15811586 (1994). 216. B.S. Altan and E.C. Aifantis, Composites and Gradient Elasticity, Proc. 1st Int. Conf. on Comp. Engng. (ICCE1), Ed. D. Hui, pp. 21-22, New Orleans (1994). 1995 217. E.C. Aifantis, Pattern formation in plasticity, Int. J. Eng. Sci. 33, 2161-2178 (1995). 218. E.C. Aifantis, From micro- to macro-plasticity: The scale invariance approach, J. Engng. Mat. Tech. 117, 352-355 (1995). 219. J. Ning and E.C. Aifantis, On the description of anisotropic plastic flow by the scale invariance approach, Int. J. Plasticity 11, 183-193 (1995). 220. H. Zhu, H.M. Zbib and E.C. Aifantis, On the role of strain gradients in adiabatic shear banding, Acta Mechanica 111, 111-124 (1995). 221. T.W. Webb and E.C. Aifantis, Oscillatory fracture in polymeric materials, Int. J. Solids Struct. 32, 2725-2743 (1995). 222. S. Papargyri-Pegiou, D. Theofanides, T.W. Webb and E.C. Aifantis, A simple approach for modelling the heterogeneity of crack tip plastic zones, Mech. Res. Comm. 22, 263-269 (1995). 223. M. Yu. Gutkin, A.E. Romanov and E.C. Aifantis, Nonuniform misfit dislocation distributions in nanoscale thin layers, Nanostructured Materials 6, 771-774 (1995). 224. M. Yu. Gutkin, A.E. Romanov and E.C. Aifantis, Stand-off positions and nonuniform distributions of misfit dislocations in heterophase systems, Physica Status Solidi 151, 281-290 (1995). 225. A.G. Konstandopoulos and E.C. Aifantis, A discrete model of crack growth by stress-assisted migration/aggregation of point defects, J. Mech. Behavior Mats. 6, 85-91 (1995). 226. D.J. Unger and E.C. Aifantis, The asymptotic solution of gradient elasticity for mode III, Int. J. Fracture 71, R27-R32 (1995). 227. J.E. Carsley, J. Ning, W.W. Milligan, S.A. Hackney and E.C. Aifantis, A simple, mixtures-based model for the grain size dependence of strength in nanophase metals, Nanostructured Materials 5, 441-448 (1995). 228. M. Ke, S.A. Hackney, W.W. Milligan, and E.C. Aifantis, Observation and measurement of grain rotation and plastic strain in nanostructured metal thin films, Nanostructured Materials 5, 689-698 (1995). 229. J.E. Carsley, W.W. Milligan, S.A. Hackney and E.C.Aifantis, Glass-like behavior in a nanostructured Fe/Cu alloy, Metallurgical Transactions 26A, 2479-2481 (1995). 230. W.W. Milligan, S.A. Hackney and E.C. Aifantis, Constitutive modeling for nanostructured materials, in: Continuum Models for Materials with Microstructure, Ed. H.B. Muhlhaus, pp. 379-393, Wiley (1995). 231. E.C. Aifantis, Higher order gradients and size effects, in: Size-Scale Effects in the Failure Mechanisms of Materials and Structures, Ed. A. Carpinteri, pp. 231-242, Chapman and Hall, New York (1995). 232. J. Ning and E.C. Aifantis, Anisotropic and inhomogeneous plastic flow of fibrous composites, in: MicrostructureProperty Interactions in Composite Materials, Ed. R. Pyrz, pp. 223-234, Kluwer, Netherlands (1995). 233. E.C. Aifantis, An account of spatiotemporal instabilities in deformation and fracture, in: Fracture and Plastic Instabilities, AMD-Vol. 200, Ed. N. Ghoniem, pp. 1-7, ASME, New York (1995). 234. J. Ning and E.C. Aifantis, Strain gradients and size effects in composites, in: Micromechanics and Constitutive Modelling of Composite Materials, AMD-Vol. 202, Eds. I. Demir and H.M. Zbib, pp. 31-37, ASME, New York (1995). 235. H. Zhu, H.M. Zbib and E.C. Aifantis, Flow strength and size effect in metal matrix composites, in: Micromechanics and Constitutive Modelling of Composite Materials, AMD-Vol. 202, Eds. I. Demir and H.M. Zbib, pp. 103-115, ASME, New York (1995). 236. I. Vardoulakis and E.C. Aifantis, Heterogeneities and size effects in geomaterials, in: Mechanics of Materials with Discontinuities and Heterogeneities, AMD-Vol. 201, Eds. A. Misra and C.S. Chang, pp. 27- 30, ASME, New York (1995). 237 E.C. Aifantis, Higher order gradients in adiabatic shear banding, in: Computational Mechanics (ICES 95), Vol. 1, Eds. S.N. Atluri, G. Yagawa, and T.A. Cruse, pp. 1170-1175, Springer-Verlag, Berlin (1995). 238. T.W. Webb and E.C. Aifantis, Stick-slip instabilities in fracture, in: Computational Mechanics (ICES 95), Vol 1, Eds. S.N. Atluri, G. Yagawa and T.A. Cruse, pp. 1353-1358, Springer-Verlag, Berlin (1995). 239. H.G. Georgiades and E.C. Aifantis, A gradient elasticity solution for the problem of anti-plane shear pulsating force on the surface of a half space, in: Proc. 4th Nat. Congress of Theor. Appl. Mech., Eds. P.S. Theocaris and E.E. Gdoutos, pp. 202-206, Xanthi, Greece (1995). 240. G. Exadaktylos, I. Vardoulakis and E.C. Aifantis, Cracks in gradient elastic bodies with surface energy, in: Proc. 4th Nat. Congress of Theor. Appl. Mech., Eds. P.S. Theocaris and E.E. Gdoutos, pp. 341-351, Xanthi, Greece (1995). 241. E.C. Aifantis, Adiabatic shear banding: Higher-order strain gradient effects, in: Constitutive Laws: Theory, Experiments and Numerical Implementation, Eds. A.M. Rajendran and R.C. Batra, pp. 139-146, CIMNE, Barchelona (1995). 242. B.S. Altan and E.C. Aifantis, Propagation of SH waves in laminated composites, Proc. 2nd Int. Conf. Composites Eng. (ICCE2), Ed. D Hui, pp. 21-22, New Orleans (1995). 1996 243. M. Yu. Gutkin, A.E. Romanov, and E.C. Aifantis, Screw dislocation near a triple junction of phases with different elastic moduli. I. General solution, Physica Status Solidi, 153, 65-75 (1996). 244. D.J. Unger and E.C. Aifantis, Analytical gradient plasticity solution for mode III, Int. J. Fracture 74, R75-R79 (1996). 245. I. Vardoulakis, G. Exadaktylos and E.C. Aifantis, Gradient elasticity with surface energy: Mode III crack problem, Int. J. Solids Struct. 33, 4531-4559 (1996). 246. G. Exadaktylos, I. Vardoulakis and E.C. Aifantis, Cracks in gradient elastic bodies with surface energy, Int. J. Fracture 79, 107-119 (1996). 247. B.S. Altan, H. Evensen and E.C. Aifantis, Longitudinal vibrations of a beam: A gradient elasticity approach, Mech. Res. Comm. 23, 35-40 (1996). 248. J. Ning and E.C. Aifantis, Anisotropic and inhomogeneous deformation of polycrystalline solids, in: Unified Constitutive Laws of Plastic Deformation, Eds. A.S. Krausz and K. Krausz, pp. 319-341, Academic Press, San Diego (1996). 249. M. Yu. Gutkin, A.E. Romanov and E.C. Aifantis, Elastic behavior of screw dislocations near triple junctions of interphase boundaries, (Proc. 7th Int. Conf. Intergranular and Interphase Boundaries in Materials, 26-29 June 1995, Lisbon, Portugal), Mater. Sci. Forum, Vols. 207-209, pp. 605-608, Trans. Tech. Publ., Switzerland (1996). 250. J.E. Carsley, W.W. Milligan, S.A. Hackney and E.C. Aifantis, Deformation mechanisms in bulk Fe - 10% Cu nanostructures, in: Processing and Properties of Nanocrystalline Materials, Eds. C. Suryanarayana et al, pp. 415-420, TMS, Warrendale, PA (1996). 251. S. Hackney, M. Ke, W.W. Milligan and E.C. Aifantis, Grain size and strain rate effects on the mechanisms of deformation and fracture in nanostructured metals, in: Processing and Properties of Nanocrystalline Materials, Eds. C. Suryanarayana et al, pp. 421-426, TMS, Warrendale, PA (1996). 252. E.C. Aifantis, Non-linearity, periodicity and patterning in plasticity and fracture, Int. J. Non-Linear Mech. 31, 797-809 (1996). 253. J. Ning and E.C. Aifantis, Anisotropic yield and plastic flow of polycrystalline solids, Int. J. Plasticity 12, 1221-1240 (1996). 254. G.E. Exadaktylos and E.C. Aifantis, Two and three dimensional problems in gradient elasticity, J. Mech. Behavior Mats. 7, 93-117 (1996). 255. J. Ning and E.C. Aifantis, Gradient theory and its applications to stability analysis of materials and structures, J. Mech. Behavior Mats. 7, 235-263 (1996). 256. Y.W. Wang, S.A. Majlessi, J. Ning and E.C. Aifantis, The strain gradient approach for deformation localization and forming limit diagrams, J. Mech. Behavior Mats 7, 265-277 (1996). 257. J. Huang, W.W. Olson, J.W. Sutherland and E.C. Aifantis, On the shear instability in chip formation in orthogonal machining, J. Mech. Behavior Mats 7, 279-292 (1996). 258. K.N. Moutsopoulos, I.E. Eleftheriadis and E.C. Aifantis, Numerical simulation of transport phenomena by using the double porosity/ diffusivity continuum model, Mech. Res. Comm. 23, 577-582 (1996). 259. A. Kouroukafopoulos, N.K. Hatzitrifon, T. Webb and E.C. Aifantis, Equilibrium solute distribution near an interface crack tip and environment-assisted cracking in bi-materials, Mech. Res. Comm. 23, 583-588 (1996). 260. M. Yu. Gutkin and E.C. Aifantis, Screw dislocation in gradient elasticity, Scripta Materialia 35, 1353-1358 (1996). 1997 261. M. Yu. Gutkin and E.C. Aifantis, Edge dislocation in gradient elasticity, Scripta Materialia 36, 129-135 (1997). 262. T.W. Webb, X.H. Zhu and E.C. Aifantis, A simple method for calculating shear band angles for pressure-sensitive plastic materials, Mech. Res. Comm. 24, 69-74 (1997). 263. T.W. Webb and E.C. Aifantis, Crack growth resistance curves and stick- slip fracture instabilities, Mech. Res. Comm. 24, 123-130 (1997). 264. T.W. Webb and E.C. Aifantis, Loading rate dependence of stick-slip fracture in polymers, Mech. Res. Comm. 24, 115121 (1997). 265. H.T. Zhu, H.M. Zbib, and E.C. Aifantis, Strain gradients and continuum modeling of size effect in metal matrix composites, Acta Mechanica 121, 165-176 (1997). 266. X.H. Zhu, J.E. Carsley, W.W. Milligan, and E.C. Aifantis, On the failure of pressure-sensitive plastic materials: Part I. Models of yield and shear band behavior, Scripta Materialia 36, 721-726 (1997). 267. J.E. Carsley, W.W. Milligan, X.H. Zhu and E.C. Aifantis, On the failure of pressure-sensitive plastic materials: Part II. Comparisons with experiments on ultra fine grained Fe-10% Cu alloys, Scripta Materialia 36, 727-732 (1997). 268. E.C. Aifantis, Erratum: Non-linearity, periodicity and patterning in plasticity and fracture, Int. J. Non-Linear Mechanics 32, 1015 (1997). 269. J. Huang and E.C. Aifantis, A note on the problem of shear localization during chip formation in orthogonal machining, J. Mater. Engng. & Performance 6, 25-26 (1997). 270. J.E. Carsley, G.R. Shaik, W.W. Milligan and E.C. Aifantis, Mechanical behavior of bulk nanostructured Fe/Cu alloys, Symp. Chemistry and Physics of Nanostructures and Related Non-equilibrium Materials, Eds. E. Ma et al, pp. 183-192, TMS, Warrendale, PA (1997). 271. A.A. Tsioutras, E.K. Hadjitryfonos, N.K. Hatzitrifon and E.C. Aifantis, Mechanical and environmental effects on the domes of the Ottoman Bazaar Hammam in Thessaloniki, Proc. 4th Int. Symp. on the Conservation of Monuments in the Mediterranean, Vol. 2, Eds. A. Moropoulou et al, pp. 181-191, Technical Chamber of Greece, Athens (1997). 272. B.S. Altan and E.C. Aifantis, On some aspects in the special theory of gradient elasticity, J. Mech. Behavior Mats. 8, 231-282 (1997). 273. N. Liosatos, A.E. Romanov, M. Zaiser and E.C. Aifantis, Misfit dislocation patterning in thin films, Proc. of 13th Greek Conference on Solid State Physics, Ed. K. Paraskevopoulos, pp. 451-456, Ziti Publ., Thessaloniki (1997). 274. M. Avlonitis, M. Zaiser, G. Kanellis and E.C. Aifantis, Stochastic approach in the description of texture during plastic deformation, in: Proc. of the 13th National Conference on Solid State Physics, Ed. K. Paraskevopoulos, pp. 457-460, Ziti Publ., Thessaloniki (1997). 275. F. Akintayo, N.K. Hatzitrifon and E.C. Aifantis, Quantitative expression of certain qualitative dispositions of eurocode 8 / annex J, in: Proc. of the Conference “The wood in subordinate structural constructions - Old and new technologies”, Monument and Environment 3 , pp. 251-260, Thessaloniki (1997). 1998 276. D.A. Konstantinidis, I.E. Eleftheriadis, E.C. Aifantis, On the experimental validation of the double diffusivity model, Scripta Materialia 38, 573-580 (1998). 277. N. Liosatos, A.E. Romanov, M. Zaiser and E.C. Aifantis, Non-local interactions and patterning of misfit dislocations in thin films, Scripta Materialia 38, 819-826 (1998). 278. M. Zaiser and E.C. Aifantis, On the dynamic interaction between moving dislocations, Applied Physics 66A, 393-397 (1998). 279. M. Zaiser, M. Avlonitis and E.C. Aifantis, Stochastic and deterministic aspects of strain localization during cyclic plastic deformation, Acta Materialia 46, 4143-4151 (1998). 280. J.E. Carsley, A. Fisher, W.W. Milligan and E.C. Aifantis, Mechanical behavior of a bulk nanostructured iron alloy, Metallurgical and Materials Transactions 29A, 2261-2271A (1998). 281. K. Cholevas, N. Liosatos, A.E. Romanov, M.Zaiser and E.C. Aifantis, Misfit dislocation patterning in thin films, Physica Status Solidi B 209, 295-304 (1998). 282. D.A. Konstantinidis and E.C. Aifantis, On the ‘anomalous’ hardness of nanocrystalline materials, Nanostructured Materials 10, 1111-1118 (1998). 283. M. Zaiser, M. Avlonitis and E.C. Aifantis, Deterministic and stochastic aspects of strain localization in the fatigue of metals, in NATO Volume PROBAMAT-21 Century, Ed. G.N. Frantziskonis, pp. 557-572, Kluwer, Dordrecht (1998). 284. E.C. Aifantis, Recent progress on gradient theory and applications, in IUTAM Symp. Material Instabilities in Solids, Eds. R. de Borst and E. van der Giessen, pp. 533-548, Wiley, Chichester (1998). 285. X.H. Zhu, S.A. Majlessi and E.C. Aifantis, Predicting the forming limit diagram (FLD) for sheet metals with planar anisotropy, SAE Transactions: J. Materials & Manufacturing 107, 56-64 (1998). 286. E.C. Aifantis, Gradient models in elasticity and plasticity, in: Constitutive and Damage Modeling of Inelastic Deformation and Phase Transformation, Ed. A.S. Khan, pp. 455-458, Neat Press, Maryland (1998). 287. J. Huang, J.W. Sutherland and E.C. Aifantis, Application of gradient theory in machining: Localized chip formation, in: Constitutive and Damage Modeling of Inelastic Deformation and Phase Transformation, Ed. A.S. Khan, pp. 353-357, Neat Press, Maryland (1998). 288. A. Majlessi, Y-W. Wang and E.C. Aifantis, Application of gradient theory in sheet metal formability: Forming limit diagrams, in: Constitutive and Damage Modeling of Inelastic Deformation and Phase Transformation, Ed. A.S. Khan, pp. 381-384, Neat Press, Maryland (1998). 289. A. Majlessi, X. Zhu and E.C. Aifantis, Instability analysis in sheet materials with planar anisotropy, in: Constitutive and Damage Modeling of Inelastic Deformation and Phase Transformation, Ed. A.S. Khan, pp. 495-498, Neat Press, Maryland (1998). 290. C. di Prisco and E.C. Aifantis, Plasticity and gradient theory: An approach for granular materials, in: Constitutive and Damage Modeling of Inelastic Deformation and Phase Transformation, Ed. A.S. Khan, pp. 553-556, Neat Press, Maryland (1998). 291. M. Brocato and E.C. Aifantis, A theory of plasticity based on globalization of microscopic constitutive assumptions, in: Constitutive and Damage Modeling of Inelastic Deformation and Phase Transformation, Ed. A.S. Khan, pp. 701-704, Neat Press, Maryland (1998). 292. K.N. Moutsopoulos, A.A Konstantinidis, C.D. Tzimopoulos, I. Meladiotis and E.C. Aifantis, Quantitative and qualitative behaviour of multiple porosity aquifers, in: Proc. of the Protection and Restoration of the Environment IV, Eds. K. Katsifarakis and I. Mylopoulos, pp. 45-52, Sani, Chalkidiki (1998). 293. A. Konstantinidis, G. Frantziskonis and E.C. Aifantis, Wavelets approach to adiabatic shear banding, in: Proc. of the 5th National Congress on Mechanics, Eds. P. Theocaris et al., pp.930-936, Univ. Ioannina Press, Ioannina (1998). 294. G. Efremidis, G. Exadaktylos, J. Ning and E.C. Aifantis, Gradient elasticity and size effects, in: Proc. of the 5 th National Congress on Mechanics, Eds. P. Theocaris et al., pp. 915-922, Univ. Ioannina Press, Ioannina (1998). 295. F. Akintayo P. Papadopoulos and E.C. Aifantis, Simulation of uniaxial compression of a concrete column by a truss model with instability, in: Proc. of the 5th National Congress on Mechanics, Eds. P. Theocaris et al., pp. 899-906, Univ. Ioannina Press, Ioannina (1998). 296. I.E. Eleftheriadis, S. Logothetidis and E. C. Aifantis, Thin film instabilities: Experimental observations and preliminary analysis, in: Proc. of the 5th National Congress on Mechanics, Eds. P. Theocaris et al., pp. 923-929, Univ. Ioannina Press, Ioannina (1998). 297. M. Avlonitis, M. Zaiser and E.C. Aifantis, A stochastic approach to microstructural evolution during plastic deformation and its application to texture, in: Proc. of the 5th National Congr. on Mechanics, Eds. P. Theocaris et al., pp. 907-914, Univ. Ioannina Press, Ioannina, (1998). 298. I. Mastorakos, A.G. Konstandopoulos and E.C. Aifantis, A discrete computer model for environmental cracking, in: Proc. of the 5th National Congr. on Mechanics, Eds. P. Theocaris et al., pp. 945-952, Univ. Ioannina Press, Ioannina (1998). 299. I. Tsagrakis, T. Malmberg and E.C. Aifantis, Gradient plasticity and size effects, in: Proc. of the 5th National Congress on Mechanics, Eds. P. Theocaris et al., pp. 953-960, Univ. Ioannina Press, Ioannina (1998). 1999 300. E.C. Aifantis, Gradient deformation models at nano, micro, and macro scales, J. Eng. Mater. Tech. 121, 189-202 (1999). 301. E.C. Aifantis, Strain gradient interpretation of size effects, Int. J. Fracture 95, 299-314 (1999). [also: E.C. Aifantis, Strain gradient interpretation of size effects, INV-REVISA(99)-P004]. 302. D.A. Konstantinidis and E.C. Aifantis, Further experimental evidence of the double diffusivity model, Scripta Materialia 40, 1235-1241 (1999). 303. M.Yu. Gutkin and E.C. Aifantis, Dislocations in the theory of gradient elasticity, Scripta Materialia 40, 559-566 (1999). 304. M.Yu. Gutkin and E.C. Aifantis, Dislocations and disclinations in gradient elasticity, Physica Status Solidi 214B, 245284 (1999). 305. M.Yu. Gutkin and E.C. Aifantis. Dislocations and disclinations in the gradient theory of elasticity. Phys. Solid State, 41, 1980-1988 (1999). 306. A.G. Varias, I. Mastorakos and E.C. Aifantis, Numerical simulation of interface crack in thin films, Int. J. Fracture 98, 195-207 (1999). 307. E.C. Aifantis, F. Oka, A. Yashima and T. Adachi, Instability of gradient dependent elasto-viscoplasticity for clay, Int. J. Numer. Anal. Meth. Geomech. 23, 973-994 (1999). 308. E.C. Aifantis, 1999 update of gradient theories, in: Proc. 4th Int. Conf. Const. Laws Engng. Mats., Eds. R.C. Picu and E. Krempl, pp. 42-45, RPI Press, Troy (1999). 309. M. Avlonitis and E.C. Aifantis, On the derivation of a new class of Fokker-Planck equations for plastic deformation, Ed. P. D. Spanos, pp. 407-409, Balkema, Rotterdam (1999). 310. A. Konstantinidis, Ch. Pontidou and E.C. Aifantis, Applications of the gradient theory and wavelets in instabilities of polymeric materials, in: Proc. of the 2nd Greek Conference of Chemical Engineering, Eds. Assael et al., pp. 787-790, Tziola Publ., Thessaloniki (1999). 311. G. Efremidis, F. Akintayo and J. Ning, Application of higher order theory of elasticity in problems of chemical engineering technology, in: Proc. of the 2nd Greek Conference of Chemical Engineering, Eds. Assael et al., pp. 937940, Tziola Publ., Thessaloniki (1999). 312. D. A. Konstantinidis, I. E. Eleftheriadis and E. C. Aifantis, Theory of double-diffusion and its application to the analysis of the experimental data, in: Proc. of the 2nd Greek Conference of Chemical Engineering, Eds. Assael et al., pp. 369-372, Tziola Publ., Thessaloniki (1999). 313. M. Avlonitis, K. Kalaitzidou, M. Zaiser and E.C. Aifantis, Equations of Reaction-Diffusion for the morphogenesis of crystal defects in materials, in: Proc. of the 2nd Greek Conference of Chemical Engineering, Eds. Assael et al., pp. 373376, Tziola Publ., Thessaloniki (1999). 314. E. D. Karagiannis, I. Mastorakos and E.C. Aifantis, Strain gradients in interfaces, in: Proc. of the 2nd Greek Conference of Chemical Engineering, Eds. Assael et al., pp. 843-846, Tziola Publ., Thessaloniki (1999). 315. I. Tsagrakis, I. Chasiotis and E.C. Aifantis, Applications of the strain gradients in necking and stretching of polymeric fibres and membranes, in: Proc. of the 2nd Greek Conference of Chemical Engineering, Eds. Assael et al., pp. 839-842, Tziola Publ., Thessaloniki (1999). 316. O. Hausler, C.H. Tsakmakis and E.C. Aifantis, On anisotropic plastic flow, in IUTAM-Symposium on Micro- and Macrostructural Aspects of Thermoplasticity, Eds. O.T. Bruhns and E. Stein, pp. 69-78, Kluwer, Dordrecht (1999). 317. S.A. Majlessi, X.H. Zhu and E.C. Aifantis, The effect of strain path on formability of sheet metals, Sheet Metal Forming Technology, pp. 187-203, MMM Society /AIME (1999). 318. M. Zaiser and E.C. Aifantis, Materials instabilities and deformation patterning in plasticity, in: Recent Res. Devel. Metallurg. & Materials Sci. (Research Signpost) 3, 79-103 (1999). 319. D.A. Konstantinidis, I.E. Eleftheriadis and E.C. Aifantis, Application of double diffusivity model to superconductors, in: Proc. of the 1st Japanese-Greek Symposium on the Physics of Superconductors, Eds. A. Mamalis, K.Miya, M.Enokizono, A.Kladas, pp. 99-102, Athens (1999). 320. T. Malmberg, K. Krompholz, G. Solomos and E.C. Aifantis, Investigations on size effects in ferritic and austenitic materials, Trans. 15th Int. Conf. Structural Mechanics in Reactor Technology (SMIRT-15), Ed. S.P. Chang, pp. X299X306, paper L06/05, Seoul (1999). 321. J. Devos et al. (15 authors including E.C. Aifantis), Reactor Vessel Integrity in Severe Accidents (REVISA), FISA 1999-EU Research in Reactor Safety, pp. 136-145, Luxembourg (1999). 2000 322. M. Avlonitis, M. Zaiser and E.C. Aifantis, Some exactly solvable models for the statistical evolution of internal variables during plastic deformation, J. Probab. Engng. Mech. 15, 131-138 (2000). 323. D.J. Unger and E.C. Aifantis, Strain gradient elasticity theory for antiplane shear cracks. Part I: Oscillatory displacements, Theor. Appl. Fract. Mech. 34, 243-252 (2000). 324. D.J. Unger and E.C. Aifantis, Strain gradient elasticity theory for antiplane shear cracks. Part II: Monotonic displacements, Theor. Appl. Fract. Mech. 34, 253-265 (2000). 325. F. Oka, A.Yashima, K.Sawada and E.C.Aifantis, Instability of gradient-dependent elastoviscoplastic model for clay and strain localization, Comp. Meth. Appl. Mech. Engng. 183, 67-86 (2000). 326. M.Yu. Gutkin and E.C. Aifantis, Nanoscale elastic properties of dislocations and disclinations, in: Nanostructured Films (NATO Adv. Res. Workshop), NATO ARW-Vol. 78, Eds. G.M. Chow, I.A. Ovidko and T. Tsakalakos, pp. 247-254, Kluwer, Dorderecht (2000). 327. M.Yu. Gutkin, K.N. Mikaelyan and E.C. Aifantis, Screw dislocation near interface in gradient elasticity, Scripta Materialia 43, 477-484 (2000). 328. M.Yu. Gutkin, K.N. Mikaelyan and E.C. Aifantis, Behavior of screw dislocations near phase boundaries in the gradient theory of elasticity, Physics of the Solid State 42, 1652-1658 (2000). 329. K.N. Mikaelyan, M.Yu. Gutkin and E.C. Aifantis, Edge dislocations near phase boundaries in the gradient theory of elasticity, Physics of the Solid State 42, 1659-1667 (2000). 330. W.W. Milligan and E.C. Aifantis, Deformation behavior of nanostructured metals, J. Mech. Beh. of Mat. 11, 147-151 (2000). 331. E.C. Aifantis, Gradient aspects of crystal plasticity at micro and macro scales, Key Engng. Mat. 177-180, 805-810 (2000). 332. S.I. Marras, I.A. Ihtiaris, N.K. Hatzitrifon, K. Sicalidis and E.C.Aifantis, A preliminary study of stress-assisted fluid penetration in ceramic bricks, J. European Ceramic Soc. 20, 489-495 (2000). 333. E.C. Aifantis, Nanomechanics: An introduction, in: Recent Adv. Appl. Mech. (Honorary Volume for Academician A.N. Kounadis), Eds. T. Katsikadelis, D.E. Beskos and E.E. Gdoutos, pp. 243-254 , NTUA, Athens (2000). 334. E.C. Aifantis, Theoretical and experimental aspects of gradient theory, SEM IX Int. Cong. Exp. Mech., pp 648-651, Orlando, SEM (2000). 335. E.C. Aifantis (Editor), Special issue: Second Euroconference and International Symposium on Material Instabilies in Deformation and Fracture, J. Mech. Beh. Mat. 11, Nos. 1-3 [264 pages], 2000. 336. S.I. Marras, I.A. Ihtiaris, S.P. Taptas, N.K. Hatzitrifon and E.C. Aifantis, Influence of humidity on the strength of a brick constructed Ottoman dome, in: Proc. 1st Nat. Cong. on Mild Interventions and Protection of Historical Buildings, Ed. N.K. Hatzitrifon, pp.343-356, Ministry of Culture, Thessaloniki (2000). 337. I. Tsagrakis, T. Malmberg and E.C. Aifantis, Review of experiments on Similarity and size effects in uniaxial creep of smooth specimens, Scientific Report in REVISA Project INV-REVISA(99), Forschungszentrum Karlsruhe, Germany (2000). 338. I. Tsagrakis, A. Konstantinidis and E.C. Aifantis, Internal variable and wavelet models for size effects in smooth specimens, REVISA-Project, Milestone Report INV-REVISA(00)-P018, 34 p. (2000). 2001 339. E.C. Aifantis, Gradient Plasticity, in Handbook of Materials Behavior Models, Ed. J. Lemaitre, pp. 291-307, Academic Press, New York (2001). 340. K. Moutsopoulos, A. Konstantinidis, I. Meladiotis, C. Tzimopoulos and E.C. Aifantis, Hydraulic Behavior and Contaminant Transport in Multiple Porosity Media, Transport in Porous Media 42, 265-292 (2001). 341. D.A. Konstantinidis, I.E. Eleftheriadis and E.C. Aifantis, Application of double diffusivity model to superconductors, J. Mat.Proc.Tech. 108, 185-187 (2001). 342. L. Teneketzis Tenek and E.C. Aifantis, On some applications of gradient elasticity to composite materials, J. Comp. Struct. 53, 189-197 (2001). 343. G. Z. Voyiadjis, B. Deliktas and E. C. Aifantis, Multi-scale analysis of multiple damage mechanisms coupled with inelastic behavior of composite materials, J. Engng. Mech. 127, 636-645 (2001). 344. T. Ioannidou, J. Pouget and E.C. Aifantis, Kink dynamics in a lattice model with long-range interactions, J. Phys. A: Math.Gen. 34, 4269-4280 (2001). 345. M. Zaiser, S.I. Marras, E. Nadgorny, H.P. Strunk and E.C. Aifantis, Fractal dislocation pattering in plastically deformed NaCl polycrystals, Phys. Stat. Sol. A 185, R4 –R5 (2001). 346. G. Frantziskonis, A. Konstantinidis and E.C. Aifantis, Scale-dependent constitutive relations and the role of scale on nominal properties, Eur. J. Mech. A/Solids 20, 925-936 (2001). 347. A. Konstantinidis, G. Frantziskonis, A. Carpinteri and E.C. Aifantis, Size effects on tensile strength and fracture energy: Wavelets versus fractal approach, J. Mech. Beh. Mat 12, 63-75 (2001). 348. M. Avlonitis, T. Ioannidou, G. Frantziskonis and E. C. Aifantis, Statistical and stochastic aspects of gradient theory, J. Mech. Beh. Mat. 12, 77-84 (2001). 349. G. Efremidis, A. Carpinteri and E.C. Aifantis, Griffith theory versus gradient elasticity in the evaluation of porous materials tensile strength, J. Mech. Beh. Mat. 12, 95-105 (2001). 350. G. Efremidis, A. Carpinteri and E.C. Aifantis, Multifractal scaling law versus gradient elasticity in the evaluation of disordered materials compressive strength, J. Mech. Beh. Mat. 12, 107-120 (2001). 351. A. Konstantinidis, T. Ioannidou, A. Kehagias, and E.C. Aifantis, Gradient constitutive equations, size effects and atrificial neural networks, J. Mech. Beh. Mat.12, 141-157 (2001). 352. P. Sapalidis, D. Dodou, P. Hahner, M. Zaiser and E.C. Aifantis, Fluctuation-induced nucleation of PLC bands, in: Influences of Defect and Interface Behavior on Microsturcture Evolution, MRS Proc. Vol. 652, Eds. M. Aindow, M. Asta, M.V. Glazov, D.L. Medlin, A.D. Rollet and M. Zaiser, pp. Y 281-286, MRS, Warrendale PA (2001). 353. J. Huang, K. Kalaitzidou, J.W. Sutherland, W.W. Milligan, E.C. Aifantis, R. Sievert and S. Forest, Gradient plasticity: Implications to chip formation in machining, in: Proc. 4 th Int. ESAFORM Conf. on Material Forming, Eds. M. Geers and P. Steinmann, pp. 527-530, Liege (2001). 354. W. Milligan, S. Hackney and E.C. Aifantis, Nanomechanics: Experiments and observations, Proc. of the 2001 SEM Annual Conf. on Experimental and Applied Mechanics, 4-6 June 2001, SEM X, pp. 450-453, Portland OR (2001). 355. D. Kugiumtzis and E.C. Aifantis, Time series analysis and the deterministic structure of the PLC effect, in: Proc. 6th Nat. Cong. of Mechanics, Eds. E.C.Aifantis and A.N.Kounadis, Vol. 3, pp. 29-34, Giahoudi-Giapouli Publ., Thessaloniki (2001). 356. G. Stagika, S. Ichtiaroglou, E.C. Aifantis and I. Groma, Some dynamical system considerations for dislocations, in: Proc. 6th Nat. Cong. of Mechanics, Eds. E.C. Aifantis and A.N.Kounadis, Vol. 3, pp. 35-39, Giahoudi-Giapouli Publ., Thessaloniki (2001). 357. E. Meletlidou, J. Pouget, G.A. Maugin and E.C. Aifantis, Invariant relations in a Boussinesq type equation, in: Proc. 6th Nat. Cong. of Mechanics, Eds. E.C. Aifantis and A.N. Kounadis, Vol. 3, pp. 67-72, Giahoudi-Giapouli Publ., Thessaloniki (2001). 358. T. Ioannidou, J. Pouget and E.C. Aifantis, Kink dynamics in a long-range interaction model, in: Proc. 6th Nat. Cong. of Mechanics, Eds. E.C. Aifantis and A.N. Kounadis, Vol. 3, pp. 73-78, Giahoudi-Giapouli Publ., Thessaloniki (2001). 359. M. Zaiser and E.C. Aifantis, Modeling the crushing of a cellular material, in: Proc. 6 th Nat. Cong. of Mechanics, Eds. E.C. Aifantis and A.N. Kounadis, Vol. 3, pp. 102-108, Giahoudi-Giapouli Publ., Thessaloniki (2001). 360. G. Efremidis, I. Tsagrakis and E.C. Aifantis, Gradient plasticity theory and size effects in deformation and failure of thick-walled tubes, in: Proc. 6th Nat. Cong. of Mechanics, Eds. E.C Aifantis and A.N. Kounadis, Vol. 3, pp. 129-135, Giahoudi-Giapouli Publ., Thessaloniki (2001). 361. K. Kosmidis, F. Akintayo and E.C. Aifantis, Solution of Spherical lame problem within the framework of gradient elasticity, in: Proc. 6th Nat. Cong. of Mechanics, Eds. E.C.Aifantis and A.N. Kounadis, Vol. 3, pp. 136-141, GiahoudiGiapouli Publ., Thessaloniki (2001). 362. T. Malmberg, I. Tsagrakis, I. Eleftheriadis, E.C. Aifantis, K. Krompholz and G. Solomos, Gradient plasticity approach to size effects, Trans. 16th Int. Conf. on Structural Mechanics in Reactor Technology (SMIRT-16, 11-17 August 2001, Washington D.C.), Eds. V.C.Matzen and C.D.Tung, paper No. 1220, Washington D.C. (2001). 363. T. Malmberg, K. Krompholz, D. Kalkhof, G. Solomos and E.C. Aifantis, Size effects in deformation and fracture of a ferritic reactor pressure vessel steel, Trans.16th Int. Conf. on Structural Mechanics in Reactor Technology (SMIRT-16, 11-17 August 2001, Washington D.C.), Eds. V.C.Matzen and C.D.Tung, paper No. 1224, Washington D.C. (2001). 364. R. Krieg et al (24 authors including E.C. Aifantis), Limit strains for severe accident conditions- Description of a European research program and first results, Trans. 16th Int. Conf. on Structural Mechanics in Reactor Technology (SMIRT-16, 11-17 August 2001, Washington D.C.), Eds. V.C.Matzen and C.D.Tung, paper No. 1226, Washington D.C. (2001). 365. T. Malmberg, I. Tsagrakis, I. Eleftheriadis and E.C. Aifantis, On the gradient plasticity approach to size effects, Part I: Reviews, Forschungszentrum Karlsruhe, Scientific Report FZKA 6321, Karlsruhe (2001). [also: T. Malmberg, I. Tsagrakis, I. Eleftheriadis and E.C. Aifantis, On the gradient plasticity approach to size effects, Part I: Reviews, INVREVISA(99)-P011]. 366. T. Malmberg, I. Tsagrakis, I. Eleftheriadis and E.C. Aifantis, On the gradient plasticity approach to size effects, Part II: Applications, Forschungszentrum Karlsruhe, Scientific Report FZKA 6322, Karlsruhe (2001). 367. R. Krieg et al (13 authors including E.C. Aifantis), Limit strains for severe accident conditions (LISSAC), FISA 2001EU Research in Reactor Safety, Luxembourg (2001). 2002 368. C. di Prisco, S. Imposimato, and E.C. Aifantis, A visco-plastic constitutive model for granular soils modified according to nonlocal and gradient approaches, Int. J. Num. Anal. Meth. Geomech. 26, 121-138 (2002). 369. M. Seefeldt and E.C. Aifantis, Disclination patterning under steady-state creep at intermediate temperatures, in: Local Lattice Rotations and Disclinations in Microstructures of Distorted Crystalline Materials (Proc. Int. Workshop, 10-14 April 2000, Rauschenbach, Germany), Eds. P. Klimanek, A. Romanov and M. Seefeldt, Solid State Phenomena 87, pp. 221-226, Scitec Publications, Switzerland (2002). 370. G. Frantziskonis and E.C. Aifantis, On the stochastic interpretation of gradient-dependent constitutive equations, Eur. J. Mech. A/Solids 21, 589-596 (2002). 371. I. Tsagrakis and E.C. Aifantis, Recent developments in gradient plasticity. Part I: Formulation and size effects, J. Eng. Mat. Tech. 124, 352-357 (2002). 372. A. Konstantinidis and E.C. Aifantis, Recent developments in gradient plasticity. Part II: Plastic heterogeneity and wavelets, J. Eng. Mat. Tech. 124, 358-364 (2002). 373. H. Askes and E.C. Aifantis, Numerical modeling of size effects with gradient elasticity. Part I: Formulation, meshless discretization and examples, Int. J. Fracture 117, 347-358 (2002). 374. E. Meletlidou, J. Pouget, G. Maugin and E.C. Aifantis, The relation between energy and pseudomomentum in the elastic-crystal Boussinesq equation, J. Mech. Beh. Mat. 13, 107-115 (2002). 375. S. Forest, R. Sievert and E.C. Aifantis, Strain gradient plasticity: thermomechanical formulations and applications, J. Mech. Beh. Mat. 13, 219-232 (2002). 376. L. Teneketzis Tenek and E.C.Aifantis, A two-dimensional finite element implementation of a special form of gradient elasticity, Comp. Modeling in Engng. Sciences 3, 731-741 (2002). 377. I. Tsagrakis and E.C. Aifantis, Element-free Galerkin (EFG) implementation of a damage enhanced flow theory of gradient plasticity in finite deformations, Final Report of the AUT Contribution to EU-project LISSAC (Contract No. FIKS-CT1999-00012), Thessaloniki, 2002. 2003 378. H. M. Zbib and E. C. Aifantis, Size Effects and Length Scales in Gradient Plasticity and Dislocation Dynamics, Scripta Mat. 48, 155-160 (2003). 379. M. Zaiser and E.C. Aifantis, Geometrically necessary dislocations and strain gradient plasticity – A dislocation dynamics point of view, Scripta Mat. 48, 133-139 (2003). 380. E.C. Aifantis, Update on a class of gradient theories, Mechanics of Materials 35, 259-280 (2003). 381. I. Tsagrakis, A. Konstantinidis and E.C. Aifantis, Strain gradient and wavelet interpretation of size effects in yield and strength, Mechanics of Materials 35, 733-745 (2003). [also: I. Tsagrakis, A. Konstantinidis and E.C. Aifantis, Strain gradient and wavelet interpretation of size effects in yield and strength, INV-REVISA(99)-P005]. 382. T. Ioannidou, J. Pouget and E.C. Aifantis, Soliton dynamics in a 2D lattice model with nonlinear interactions, J. Physics A: Math. Gen. 36, 643-652 (2003). 383. D.J. Unger and E.C. Aifantis, New Class of Solutions of the Reduced Wave Equation Applicable to Crack Problems Related to Gradient Elasticity, Facta Universitatis-Ser. Mechanics, Automatic Control and Robotics 3, 599-612 (2003). 384. I. Tsagrakis and E.C. Aifantis, Element-Free Galerkin Implementation of Gradient Plasticity. Part I: Formulation and Application to 1D Strain Localization, J. Mech. Beh. Mat. 14, 199-231 (2003). 385. I. Tsagrakis and E.C. Aifantis, Element-Free Galerkin Implementation of Gradient Plasticity. Part II: Applications to 2D Strain Localization and Size Effects, J. Mech. Beh. Mat. 14, 233-253 (2003). 386. M. Zaiser and E. C. Aifantis, Avalanches and Slip Patterning in Plastic Deformation, J. Mech. Beh. Mat. 14, 255-270 (2003). 387. B.R. Murphy, I.E. Eleftheriadis, J. Ning, W. Milligan and E.C. Aifantis, On Experimental Determination of Gradient Coefficient, J. Mech. Beh. Mat. 14 271-278 (2003). 388. I. Mastorakos, L.K. Gallos and E.C. Aifantis, Computer Simulation of Discrete Crack Propagation, J. Mech. Beh. Mat. 14, 9-21 (2003). 389. I. Tsagrakis and E.C. Aifantis, On certain numerical aspects of gradient theory, In: International Conference on Computational and Experimental Engineering and Sciences (ICCES ’03), [keynote lecture], CD-ROM proceedings paper 346 (Chapter 13: Elastic & Inelastic Deformation, Organizer: Vinod Arya), Organized by: S.N. Atluri, D.E. Beskos, D. Polyzos, ed. C.A. Herrera, Corfu Island 24 - 29 July 2003, Greece. 390. G. Stagika, S. Ichtiaroglou, I. Groma, F.F. Csikor and E.C. Aifantis, Some Dynamical System Considerations for Dislocations, J. Mech. Beh. Mat. 14, 1-8 (2003). 391. I. Tsagrakis, A. Konstantinidis and E.C. Aifantis, Size effects in tension: Gradient internal variable and wavelet models, J. Mech. Beh. Mat. 14, 41-58 (2003). 392. L. Teneketzis Tenek, M.I. Baskes and E.C. Aifantis, An atomistic approach to the transverse shearing of single aluminum and aluminum-nickel biomaterial systems, J. Mech. Beh. Mat. 14, 59-70 (2003). 393. R. Krieg, M. Seidenfuss (and other authors including E.C.Aifantis), Limit Strains for Severe Accident Conditions, Final Report of the EU-project LISSAC (Contract No. FIKS-CT1999-00012, compiled by R. Krieg and M. Seidenfuss, pp. 103-111 Forschungszentrum Karlsruhe, FZKA 6854, Germany, 2003. 394. R. Krieg, M. Seidenfuss (and other authors including E.C.Aifantis), Limit Strains for Severe Accident Conditions, Synthesis Report of the EU-project LISSAC (Contract No. FIKS-CT1999-00012, compiled by R. Krieg and M. Seidenfuss, pp. 20-21 Forschungszentrum Karlsruhe, FZKA 6914, Germany, 2003. 2004 395. E. Meletlidou, J. Pouget, G. Maugin and E.C. Aifantis, Invariant relations in Boussinesq-type equations, Chaos, Sol. & Fractals 22, 613-625 (2004). 396. M. Zaiser, F. Madani Grasset, V. Koutsos and E.C. Aifantis, Self-Affine Surface Morphology of Plastically Deformed Metals, Phys. Rev. Lett. 93, 195507 (2004). 397. D. Kugiumtzis, A. Kehagias, E. C. Aifantis, and H. Neuhäuser, Statistical analysis of the extreme values of stress time series from the Portevin Le Châtelier effect, Physical Review E 70, 036110 (2004) 398. D. Kugiumtzis and E.C. Aifantis, Statistical analysis for long term correlations in the stress time series of jerky flow, J. Mech. Beh. Mat. 15, 135-147 (2004). 399. I. Tsagrakis, G. Efremidis and E.C. Aifantis, Size effects in thick-walled hollow cylinders: Deformation vs. flow theory of gradient plasticity, J. Mech. Beh. Mat. 15, 149-168 (2004). 400. B. Fyffe, M. Zaiser and E.C. Aifantis, Shear Bands and Damage Clusters in Slope Failure – A One-Dimensional Model, J. Mech. Beh. Mat. 15, 185-202 (2004). 401. P.G. Kevrekidis, S.V. Dmitriev, S. Takeno, A.R. Bishop and E.C. Aifantis, Rich example of geometrically induced nonlinearity: From rotobreathers and kinks to moving localized modes and resonant energy transfer, Phys. Rev. E 70, 066627 (2004). 402. G. Efremidis, G. Rambert and E.C. Aifantis, Gradient elasticity and size effect for a pressurized thick hollow cylinder, J. Mech. Beh. Mat. 15, 169-183 (2004). 403. G. Efremidis, and E.C. Aifantis, Gradient elasticity and size effects in borehole breakouts: An application of RuAifantis Theorem, J. Mech. Beh. Mat. 15, 279-290 (2004). 404. M. Zaiser, B. Fyffe, P. Moretti, A. Konstantinidis and E.C. Aifantis, Pinning and propagation of interface cracks in slope failure: 1D and 2D considerations, in: Proc. of the 2nd International Symposium on Continuous and Discontinuous Modelling of Cohesive Frictional Materials (CDM2004), eds. P.A. Vermeer, W. Ehlers, H.J. Hermann and E. Ramm, A.A. Balkema Publishers, pp. 435-446, 2004. 405. E.C. Aifantis, Continuum Nanomechanics, in: Proc. of the 1 st International Conference on Computational Mechanics (CM’04), CD-ROM Proceedings (2004). 406. I. Tsagrakis and E.C. Aifantis, On certain implications of gradient plasticity concerning torsional hardening and tensile necking, in: Proc. of the 7th National Congress on Mechanics, Vol. I, A. Kounadis, C. Providakis and G. Exadaktylos, eds., pp.160-165, Chania, Greece (2004). 407. G.T. Efremidis and E.C. Aifantis, An application of gradient elasticity in the coefficient of geostatic stress, in: Proc. of the 7th National Congress on Mechanics, Vol. II, A. Kounadis, C. Providakis and G. Exadaktylos, eds., pp.252-258, Chania, Greece (2004). 408. G. Rambert and E.C. Aifantis, Gradient elasticity with diffusion, heat conduction and chemical reactions, in: Proc. of the 2nd International Symposium on Continuous and Discontinuous Modelling of Cohesive Frictional Materials (CDM2004), eds. P.A. Vermeer, W. Ehlers, H.J. Hermann and E. Ramm, A.A. Balkema Publishers, pp. 295-305 (2004). 2005 409. B. Bakó, I. Groma, M. Avlonitis and E.C. Aifantis, Incorporating the influence of the temperature into a mesoscopic continuum description of dislocation systems, Mat. Sci. Engng. A 400-401, 218-221 (2005). 410. B. Bakó, I. Groma, I. Mastorakos and E.C. Aifantis, Investigation of dislocation patterning by stochastic integration of dislocation trajectories, Modelling Simul. Mater. Sci. Eng. 13, 671–681(2005). 411. I. Gitman, H. Askes and E.C. Aifantis, The representative volume size in static and dynamic micro – macro transitions, Int. J. Fracture 135, L3 – L9 (2005). 412. M. Lazar, G.A. Maugin and E.C. Aifantis, On dislocations in a special class of generalized elasticity, Phys. Status Solidi B 242, 2365-2390 (2005). 413. V. Koukouloyannis, G. Stagika, S. Ichtiaroglou, I. Groma and E.C. Aifantis, A simple model on dislocation dynamics, J. Mech. Beh. Mat. 16, 315-324 (2005). 414. E.C. Aifantis, An Update of Gradient Theory, in: Proc. of PLASTICITY ‘05, eds. A.S. Khan and A.R. Khoei, Neat Press, pp.469-471, 2005. 415. E.M. Nadgorny, J. Schwerdtfeger, F. Madani-Grasset, V. Koutsos, E.C. Aifantis and M. Zaiser, Evolution of self-affine surface roughness in plastically deforming KCl single crystals, in: International Conference on Statistical Mechanics of Plasticity and Related Instabilities, 31 August - 2 September 2005, Bangalore, India, PoS(SMPRI2005)012 2006 416. M. Lazar, G.A. Maugin and E.C. Aifantis, On a theory of nonlocal elasticity of bi-Helmholtz type and some applications, Int. J. Solids Struct. 43, 1404-1421 (2006). 417. M. Lazar, G.A. Maugin and E.C. Aifantis, Dislocations in second strain gradient elasticity, Int. J. Solids Struct. 43, 1787-1817 (2006). 418. M. Zaiser and E.C. Aifantis, Randomness and slip avalanches in gradient plasticity, Int. J. Plasticity 22, 1432-1455 (2006). 419. I. Tsagrakis, G. Efremidis, A. Konstantinidis and E.C. Aifantis, Deformation vs. Flow and Wavelet-Based Models of Gradient Plasticity: Examples of Axial Symmetry, Int. J. Plasticity 22, 1456-1485 (2006). 420. J. Pontes, D. Walgraef and E.C. Aifantis, On dislocation patterning: Multiple slip effects in the rate equation approach, Int. J. Plasticity 22, 1486-1505 (2006). 421. A. Konstantinidis, N. Pugno, P. Cornetti and E.C. Aifantis, Avalanche Mechanics: LEFM vs. Gradient Model, in: Proc. of the 16th European Conference of Fracture (ECF16), CD-ROM, 2006. 422. E.C. Aifantis, Deformation and fracture at the micron and nano scales, in: Proc. of the 16th European Conference of Fracture (ECF16), CD-ROM, 2006. 423. J. Kioseoglou, G.P. Dimitrakopulos, Ph. Komninou, Th. Karakostas, I. Konstantopoulos, M. Avlonitis and E.C. Aifantis, Analysis of partial dislocations in wurtzite GaN using gradient elasticity, Phys. Status Solidi A 203, 21612166 (2006). 424. H. Askes and E.C. Aifantis, Gradient Elasticity Theories in Statics and Dynamics – A Unification of Approaches, Int. J. Fracture 139, 297-304 (2006). 2007 425. G. Rambert, J.-C. Grandidier and E.C. Aifantis, On the direct interactions between heat transfer, mass transport and chemical processes within gradient elasticity, Eur. J. Mechanics – A/Solids 26, 68-87 (2007). 426. M. Zaiser, N. Nikitas, T. Hochrairer and E.C. Aifantis, Modelling size effects using 3D density-based dislocation dynamics, Phil. Mag. 87, 1283-1306 (2007). 427. H. Askes, T. Benett and E.C. Aifantis, A new formulation and C0-implementation of dynamically consistent gradient elasticity, Int. J. Num. Meth. Engng. 72, 111-116 (2007). 428. I.M. Gitman, H. Askes, and E.C. Aifantis, Gradient Elasticity with Internal Length and Internal Inertia Based on the Homogenisation of a Respresentative Volume Element, J. Mech. Beh. Mat. 18, 1-16 (2007). 429. L. Teneketzis Tenek and E.C. Aifantis, An atomistic model for localized deformation, J. Mech. Beh. Mat. 18, 33-42 (2007). 430. G.T. Efremidis and E.C. Aifantis, The Coefficient of Geostatic Stress: Gradient Elasticity vs. Classical Elasticity, J. Mech. Beh. Mat. 18, 43-54 (2007). 431. M. Avlonitis and E.C. Aifantis, Internal Variables and the Microstructural Evolution of Materials During Plastic Deformation, J. Mech. Beh. Mat. 18, 55-68 (2007). 432. M. Avlonitis and E.C. Aifantis, Nucleation And Non-Linear Strain Localization During Cyclic Plastic Deformation, J. Mech. Beh. Mat. 18, 69-79 (2007). 433. G.P. Mokios and E.C. Aifantis, Gradient plasticity solution of an expanding spherical cavity with application in indentation, in: Proc. of 8th HSTAM Int. Congress on Mechanics, Eds. N. Bazeos et al, pp. 607-614 (2007). 434. G.T. Efremidis and E.C. Aifantis, Gradient elasticity models for underground circular openings, in: Proc. of 8 th HSTAM Int. Congress on Mechanics, Eds. N. Bazeos et al, pp. 615-622 (2007). 435. J. Huang, K. Kalaitzidou, J. W. Sutherland and E.C. Aifantis, Validation of a predictive model for adiabatic shear band formation in chips produced via orthogonal machining, J. Mech. Beh. Mat. 18, 243-264 (2007). 436. A.L. Kolesnikova, I.A. Ovid’ko, E.C. Aifantis and A.E. Romanov, Relay dislocation-disclination mechanism of plastic deformation in nanocrystalline materials, XVII Readings in Strength and Plasticity, SPb State University, pp. 107-109 (2007). 437. S.V. Bobylev, M.Yu. Gutkin, I.A. Ovid'ko, N.V. Skiba, A.G. Sheinerman and E. Aifantis, High-strain deformation mechanisms in nanocrystalline metals and ceramic nanocomposites, Voprosy Materialovedeniya (Problems in Materials Science) 4, (2007). 438. K.Y. Xu and E.C. Aifantis, Strain analysis of a gradient elastic nanofiber in tension, in: Proc. 5 th Int. Conf. Nonlinear Mechanics (ICNM-V), Ed. Z.W. Zhou, Shanghai, 10-14 June 2007, pp. 532-536 (2007). 2008 439. J. Kioseoglou, G.P. Dimitrakopulos, Ph. Komninou, Th. Karakostas and E.C. Aifantis, Dislocation core investigation by geometric phase analysis and the dislocation density tensor, J. Physics D: Appl. Physics 41, 035408 (2008). 440. K.-Y. Xu, E.C. Aifantis and Y.-H. Yan, Vibrations of double-walled carbon nanotubes with different boundary conditions between inner and outer tubes, Trans. ASME, J. Appl. Mechanics 75, 210131-210139 (2008). 441. I.A. Ovid'ko, A.G. Sheinerman and E.C. Aifantis, Stress-driven migration of grain boundaries and fracture processes in nanocrystalline ceramics and metals, Acta Materialia 56, 2718-2727 (2008). 442. H. Askes, I. Morata and E.C. Aifantis, Finite element analysis with staggered gradient elasticity, Comp. Struct. 86, 1266-1279 (2008). 443. H. Askes, T. Bennett, I.M. Gitman and E.C. Aifantis, A multi-scale formulation of gradient elasticity and its finite element implementation, in: Trends in Engineering Computational Technology, Saxe-Coburg, eds. M. Papadrakakis and B.H.V. Topping, pp.189–208 (2008)]. 444. L.T. Tenek and E.C. Aifantis, Deformation of a two-dimensional, shear deformable cantilever beam using gradient elasticity and finite differences, Int. Rev. Mech. Engng./I.RE.M.E 2, 248-255 (2008). 445. L.T. Tenek and E.C. Aifantis, An enhanced special form of a strain gradient theory and numerical implementation using finite differences, Comp. Exper. Simul. Engng. Sci./CESES 2 , 46-53 (2008). 446. D. Walgraef and E.C. Aifantis, On the Gradient Theory of elasticity and dislocation dynamics, in: Proc: 4th Int. Conference on Multiscale Materials Modeling/MMM2008, 27-31 October 2008, Tallahassee, pp. 720-725, USA (2008). 447. M. Zaiser, P. Moretti, A. Konstantinidis and E.C. Aifantis, Shear failure of thin films on disordered substrates: Nucleation and propagation of interfacial cracks, in: Proc: 4th Int. Conference on Multiscale Materials Modeling/MMM2008, 27-31 October 2008, Tallahassee, pp. 126-131, USA (2008). 448. E.C. Aifantis, Materials across the length scale spectrum: Singularities, instabilities and pattern formation – The gradient theory paradigm, Order and Chaos, Eds. A. Bountis and S. Pnevmatikos, Vol. 10, University of Patras, pp. 119 (2008). 449. K.-Y. Xu, P.A. Kakavas, R. Ballarini, S.J. Eppell and E.C. Aifantis, Prediction of the mechanical behavior of collagen fibrils, in: Proc. Advanced Problems in Mechanics/APM 2009, St. Petersburg, 6-10 July 2008, pp. 718-723 (2008). Papers in Press P1. E.C. Aifantis, Exploring the applicability of gradient elasticity to certain micro/nano reliability problems, Microsystem Technol. 15, 109-115 (2009). P2. J. Kioseoglou, I. Konstantopoulos, G. Ribarik, G.P. Dimitrakopulos and E.C. Aifantis, Nonsingular dislocation and crack fields: Implications to small volumes, Microsystem Technol. 15, 117-121 (2009). P3. E.C. Aifantis, Deformation and failure of bulk nanograined and ultrafine-grained materials, Mat. Sci. Eng. A, in press (2008). P4. P.K. Valavala, T.C. Clancy, G.M. Odegard, T.S. Gates and E.C. Aifantis, Multiscale modeling of polymer materials using a statistics-based micromechanics approach, Acta Materialia, in press (2008). P5. A.E. Romanov, A.L. Kolesnikova, I.A. Ovid'ko and E.C. Aifantis, Disclinations in nanocrystalline materials: Manifestation of the relay mechanism of plastic deformation, Mat. Sci. Eng. A, in press (2008). P6. R.K. Abu Al-Rub, G.Z. Voyiadjis and E.C. Aifantis, E.C. On the thermodynamics of higher-order gradient plasticity for size-effects at the micron and submicron length scales, Int. J. Mater. Prod. Technol., in press (2008). P7. E.C. Aifantis, Non-singular dislocation fields, in: Proc. Dislocations 2008, 13-17 October 2008, Hong Kong, IOP Conf. Series: Mater. Sci. Engng. (MSE), Ed. A.H.W. Ngan, IOP Publishing, UK, in press (2008). P8. G. Efremidis, N. Pugno and E.C. Aifantis, A proposition for a “Self-Consistent” Gradient Elasticity, J. Mechan. Behav. Mater., in press (2008). P9. N.M Pugno and E.C. Aifantis, A note on the transition from nano- to mega-mechanics: The role of the stress quantization, J. Mechan. Behav. Mater., in press (2008). P10. G.Efremidis and E.C. Aifantis, Application of a Gradient Elasticity model to interpret size effects in uniaxial loading, J. Mechan. Behav. Mater., in press (2008). P11. D. Walgraef and E.C. Aifantis, On Dislocation Patterning: Revisiting the W-A Model. Part I: The role of gradient terms in dislocation dynamics, J. Mechan. Behav. Mater., in press (2008). P12. D. Walgraef and E.C. Aifantis, On Dislocation Patterning: Revisiting the W-A Model. Part II: The role of stochastic terms in dislocation dynamics, J. Mechan. Behav. Mater., in press (2008). P13. A. Konstantinidis, P. Cornetti, N. Pugno and E.C. Aifantis, Application of Gradient Theory and Quantized Fracture Mechanics in snow avalanches, J. Mechan. Behav. Mater., in press (2008). P14. M. Zaiser, P. Moretti, A. Konstantinidis and E.C. Aifantis, Nucleation of interfacial shear cracks in thin films on disordered substrates, J. Statist. Mechan., in press (2008).